Unit 3

A: Where did she go?

B : I don't know ....

• where she go

• where she went

• where did she go

• where did she went

Answer explanation

A : Do you know ... ?

B : That is Debi's book.

• whose book is it

• whose book it is

• who book it is

• who book is it

A : How does this machine work?

B : I don't know ....

• how the machine work

• how the machine works

• how the machine does work

• how does the machine work

It is good ....

• to see you after all this time

• have seen you after all this time

• see you after all this time

• has seen you after all this time

He returned and closed the door, ....

• making sure it is unlocked

• make sure it was unlocked

• to make sure it was unlocked

• made sure it is unlocked

Choose one of these words (what, when, who, where, why, how)

Take extra care . . . driving at night.

Choose one of these words (what, when, who, where, why, how)

Please tell me . . . I can get to the bus station.

Choose one of these words (what, when, who, where, why, how)

I don't know . . . I should do.

Choose one of these words (what, when, who, where, why, how)

We don't know . . . those men are.

Choose one of these words (what, when, who, where, why, how)

Please tell me . . . happened.