20.　 He has called several times this morning, ____ there is something very urgent.

A. really　　　　　　　　　　　 B. especially　　　　　　　　　　　 C. obviously　　　　　　　　　　　　 D. terribly

19.　 You have to wear special clothing, a helmet and a life jacket ____ your raft gets turned upside down or sinks.

A. so that　　　　　　　　　　 B. in order that　　　　　　　　　 C. now that　　　　　　　　　　　　 D. in case

18.　 I wonder if ____ to come over to my family after work.

A. you are convenient　　　　　　　　　　　　　　　　　　　　　　 B. it is convenient for you

C. it’s convenient of you　　　　　　　　　　　　　　　　　　　　 D. there’s convenient for you

17.　 As I looked at the memorial, I thought about ____ terrible disaster it was for the people in Nanjing then and ____ they were to fight the Japanese invaders.

A. how, how　　　　　　　　 B. what a, how　　　　　　　　　 C. what, how　　　　　　　　　　　 D. how, what

16.　 Television has many advantages. It keeps us ____ of the ____ news and also provides entertainment in the house.

A. informed, latest　　　　　　　　　　　　　　　　　　　　　　　　　 B. to know, later

C. learning, latter　　　　　　　　　　　　　　　　　　　　　　　　　　 D. to think, latest

15.　 Susan was expecting her favourite singers, but to her disappointment, ____ appeared.

A. some　　　　　　　　　　　 B. none　　　　　　　　　　　　　　　　 C. everyone　　　　　　　　　　　　 D. no one