16.The Great Wall is more than 6000 li in ________.

A.longer                       B.length

C.long                         D.longing

17.To my ________，I passed the exam easily.

A.joy                          B.joyful

C.joyless                      D.joyness

18.Canada is mainly an________country.

A.English-speaking             B.speak-English

C.spoken-English               D.English-spoken

19.How________ he is! He is always acting________.He is really a ________.

A.foolish；foolishly；fool

B.fool；foolish；fool

C.foolish；fool；fool

D.foolishly；foolish；fool

20.The necklace that she lost is very expensive.It’s of great ________.

A.valuable                              B.value

C.valueless                             D.unvaluable

21.There were________fish in the river in South America.

A.in danger                             B.danger

C.dangerous                             D.dangerless

22.The letter “b” in the word “doubt” is________.

A.sound                                 B.silent

C.silence                               D.sounded

23.The child looked at me________.

A.stranger                              B.strangely

C.strange                               D.strangeless

24.The black people were against slavery and fought for their________bravely.

A.free                                  B.freely

C.freedom                               D.frees

25.What you said sounded________ but in fact it was untrue.

A.reasonable                            B.reasonful

C.reasonless                            D.unreason

26.We have to learn________technology from other countries.

A.advance                               B.advancing

C.advantage                             D.advanced

27.The children live in a village ________.They come here almost every day.

A.nearby                                B.near

C.nearly                                D.near by

28.Mr Black is an ________in the army，not an________in the government.You can not easily find him in his________.

A.official；officer；office

B.officer；office；official

C.official；official；official

D.officer；official；office

29.You’d better give up smoking if you want to keep ________.

A.health                                B.healthy

C.healthily                             D.healthier

30.________ speaking，I didn’t do it on purpose.

A.Honestly　                            B.Honest