Tim is a helpful student in our class. He always helps the students in trouble, himself popular among our teacher and classmates.

1. Tim is a helpful student in our class. He always helps the students in trouble, himself popular among our teacher and classmates.

A. make B. made C. making

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单选题普通

1. China launched the Shenzhou XVI manned spaceship several days ago, ____ three astronauts to its space station combination for a five-month mission.

A. tosend B. sent C. sending D. havesent

单选题困难

2. My sister won the competition last weekend and got high praise from my parents, ____ an example for me.

A. toset B. setting C. set

单选题普通

3. After five days' hard work, the engineer finished____ the important machine.

A. repairs B. repairing C. repaired D. to repair

单选题普通