-"Let's celebrate mother's day by going out to dinner."

-" ... "

A. That's right, I am.

B. You are welcome.

C. Thanks.

D. That's a good idea.

We didn't come to their weeding party because we ...

A. don't invite

B. were not invited

C. didn't invite

D. am not invited

We didn't come to their weeding party because we ...

A. don't invite

B. were not invited

C. didn't invite

D. am not invited

She didn't use to live in the contryside, ... ?

A. didn't she

B. did she

C. not she

D. doesn't she

She is looking forward ... the summer vacation.

A. in

B. at

C. to

D. on

If it rains tomorrow, we ... the holiday.

A. will cancel

B. cancelled

C. would cancel

D. cancel