以下是小编给大家整理带来的2020年12月网络教育统考《大学英语B》词汇与语法练习题3，内附答案，考生们可以试着做一做，希望可以帮助大家提高自己的成绩。

16.A long time ago, I _______ in London for three years.

A.had lived

B.have lived

C.lived

D.have been living

答案：C

17.A pair of spectacles ________ what I need at the moment.

A.is

B.are

C.has

D.have

答案：A

18.Once environmental damage ______, it takes many years for the system to recover.

A.is to do

B.does

C.had done

D.is done

答案：D

19.You had better ________ a doctor as soon as possible.

A.seeing

B.saw

C.see

D.seen

答案：C

20.He is not seriously ill, but only a ______ headache.

A.obvious

B.delicate

C.slight

D.temporary

答案：C

以上就是2020年12月网络教育统考《大学英语B》词汇与语法练习题3，预祝大家考试顺利！

编辑推荐：

2020年12月网络教育统考《计算机应用基础》模拟题汇总

2020年12月网络教育统考《大学英语B》英译汉练习题汇总