Unit 49 · Questions

Do you know where ... ? I don't know what ... etc.

Study

A

We say: Where is Paula?

but Do you know where Paula is? (not Do you know where is Paula?)

In the same way we say:

I know
I don't know	where Paula is.
Can you tell me

Compare:

Who are those people?	but	Do you know	who those people are
How old is Nicola?		Can you tell me	how old Nicola is
What time is it?			what time it is
Where can I go?			where I can go
How much is this camera?			how much this camera is
When are you going away?		I know	when you're going away
Where have they gone?		I don't know	where they have gone
What was Kate wearing?		I don't remember	what Kate was wearing

B

Questions with do/does/did (present simple and past simple)

Where does he live?

but Do you know where he lives? (not Do you know where does he live?)

Compare:

How do airplanes fly?	but	Do you know	how airplanes fly
What does Jane want?		I don't know	what Jane wants
Why did she go home?		I don't remember	why she went home
Where did I put the key?		I know	where I put the key

C

Questions beginning Is ... ? / Do ... ? / Can ... ? etc. (yes/no questions)

Compare:

Is Jack at home?	but	Do you know	if	Jack is at home
Have they got a car?			or	they've got a car
Can Ben swim?		I don't know	whether	Ben can swim
Do they live near here?				they live near here
Did anybody see you?				anybody saw you

You can use if or whether in these sentences:

o Do you know if they've got a car? or

Do you know whether they've got a car?

o I don't know if anybody saw me. or

I don't know whether anybody saw me.

Exercises (6)

0/6 exercises checked

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49.1

Answer these questions with I don't know where/when/why ... etc.

1
Have your friends gone home?
I don't know where they've gone. example
2
Is Kate in her office?
I don't know where .
3
Is the castle very old?
I don't know how old .
4
Will Paul be here soon?
I don't know when .
5
Was he angry because I was late?
I don't know why .
6
Has Emily lived here a long time?
I don't know how long .

49.2

Complete the sentences.

1
(How do airplanes fly?)
Do you know how airplanes fly? example
2
(Where does Susan work?)
I don't know where Susan .
3
(What did Peter say?)
Do you remember what Peter .
4
(Why did he go home early?)
I don't know why he went home .
5
(What time does the meeting begin?)
Do you know what time the meeting .
6
(How did the accident happen?)
I don't remember how the accident .

49.3

Which is right?

1
Do you know what time is it / it is?
2
Why are you / you are going away?
3
I don't know where are they / they are going.
4
Can you tell me where is the museum / the museum is?
5
Where do you want / you want to go for your holidays?
6
Do you know what do elephants eat / elephants eat?
7
I don't know how far is it / it is from the hotel to the station.

49.4

Write questions with Do you know if ... ?

1
(Have they got a car?)
Do you know if they've got a car? example
2
(Are they married?)
Do you know ?
3
(Does Sue know Bill?)
Do you know ?
4
(Will Gary be here tomorrow?)
Do you know ?
5
(Did he pass his exam?)
Do you know ?

49.5

Write questions beginning Do you know ... ?

1
(What does Laura want?)
Do you know what Laura wants? example
2
(Where is Paula?)
Do you know where Paula ?
3
(Is she working today?)
Do you know ?
4
(What time does she start work?)
Do you know what time she ?
5
(Are the shops open tomorrow?)
Do you know ?
6
(Where do Sarah and Jack live?)
Do you know where Sarah and Jack ?
7
(Did they go to Jane's party?)
Do you know ?

49.6

Use your own ideas to complete these sentences.

1
Do you know why the bus was late.
2
Do you know what time {}.
3
Excuse me; can you tell me where {}.
4
I don't know what {}.
5
Do you know if {}.
6
Do you know how much {}.