助動詞aux.

Mom: Peter, be sure to finish your school report before you go to bed.

Peter: OK, Mom, I _____.

• am

• do

• have

• will

Melody has a great interest in planting flowers, but her sister _____. She can’t even stay in the garden for one minute.

• can’t

• doesn’t

• isn’t

• won’t

Ken’s brothers like to watch tennis, but Ken ____. He is crazy about baseball.

• is

• isn’t

• does

• doesn’t

Ms. Wu: What animals ____ your sister like?

Herbert: She likes lions and tigers.

• do

• does

• are

• is

I ____ write letters in English, but my brother can.

• can't

• can

• don't

• am

Jack buys a lot of books at the bookstore, and I ____, too.

• do

• does

• can

• am

A: ____ you finish your homework before 8?

B: The homework is too difficult to me. It'll take more two hours.

• Are

• Do

• Can

• Be

Our teacher Ms. Wu seldom laughs, but when she ____, everyone in the same building can hear her.

• can

• does

• has

• will