—Who is playing the piano in the music room? Is it Mary? —No, it ___________be her. She has ___________to Beijing on business.

1. —Who is playing the piano in the music room? Is it Mary?

—No, it ___________be her. She has ___________to Beijing on business.

A. couldn't; been B. can't; gone C. can't; been D. mustn't; gone

【考点】

情态动词; gone to/been to用法比较;

【答案】

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单选题普通

1. —Whose is this toy truck?

—It _________ belong to Dick. He was the only little kid at the picnic.

A. can't B. must C. could D. need

单选题容易

2. —Dad, must I finish my task today?

—No, you____ . You may do it tomorrow.

A. needn't B. mustn't C. can't

单选题容易

3. —How do you usually go to school? —My school is far away. I ________ take the bus to school.

A. must B. might C. have to

单选题容易