1编号：4159题型：单选题测试正确率：65.91%
—What did Mr. Smith do before he came to China? —He ______ in a car factory.
2编号：4157题型：单选题测试正确率：56.82%
When I came back yesterday evening, my brother ______ his homework.
3编号：4156题型：单选题测试正确率：76.14%
It ______ hard outside. You have to stay at home.
4编号：4155题型：单选题测试正确率：61.36%
—Alan, it’s late. Why not go to bed? —Jenny hasn’t come back yet. I ______ for her.
5编号：4154题型：单选题测试正确率：86.93%
—What are you doing? —I’m ______ TV.
6编号：4153题型：单选题测试正确率：59.66%
I met a good friend of mine while I______ on the street.
7编号：4148题型：单选题测试正确率：80.11%
Listen! The phone ______. Please go to answer it.
8编号：4147题型：单选题测试正确率：71.02%
Don't make so much noise. The children ______an English lesson.
9编号：4146题型：单选题测试正确率：64.77%
—I called you at 4:00 yesterday afternoon, but no one answered. —Sorry, I ______ with my friends at that time.
10编号：4145题型：单选题测试正确率：43.69%
______, everyone should try to protect the environment.
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