L4 Unit 7 REVIEW

I need ____ some emails.

• to answer

• answer

• answering

• to answering

The situation is difficult ____.

• for explain

• explain

• to explain

• for explaning

I don't know what ____.

• do

• to do

• doing

• to doing

I don't really mind ____ housework.

• do

• to do

• doing

• to doing

____ is one of the best forms of exercise.

• Swimming

• Swiming

• Swim

• To swim

____ bring our books tomorrow?

• Do we have to

• Have we to

• Do we must

• We must

It's free. You ____ pay.

• don't have to

• must not

• haven't to

• doesn't have to

You must ____ your grandmother.

• to call

• calling

• call

• called

She was really angry ____ me because I was late.

• with

• to

• of

• at

Are you interested ____ this TV show?

• in

• at

• with

• of