2020年广东成人高考专升本《英语》模拟试题及答案31

16. ________ it is very late now, the students are still working in the   lab.

A) As

B) When

C) If

D) Although

17. In the world no country has exactly the same folk music ________ that of   any other countries.

A) with

B) as

C) to

D) like

18. He used to ________ the first to arrive and the last to leave.

A) is

B) was

C) being

D) be

19. The patients will have to wait all day ________ the doctor works   faster.

A) if

B) whether

C) unless

D) that

20. The new model costs twice ________ last year’s.

A) more than

B) as much as

C) as many as

D) than