成人英语三级

11. ______ is well known, light, like heat, is a form of energy.

A.It  B. What

C. Just as D. As

12. You should turn off all the water tonight _______ water freezes and the pipes burst.

A.in some cases B. in case

C. in that case D. in any case

13. There was a teapot fashion like a China duck, out of ______ open mouth the tea was supposed to come.

A.which B. its

C. that D. whose

14. I’ll talk to him, _______ I don’t think it will do any good.

A.although B. which

C. if D. unless

15. John isn’t the same man _____ before.

A.what he was B. that he was

C. who he was D. as he was

答案：11-15 DBAAD

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