Question

根据句子意思，用所给单词的适当形式填空。多谢

71 Their parents are both teachers And_(I) are doctors。
72. You can make a_(decide) among the suggestions.
73. THe law of gravity_(discover)by Isaac Newton about 350 scars ago.
74. He lives on the__(nineteen ) floor of the building.
75. We had better eat more_(harm ) vegetables.
76____(luck）all of them were hurt in the accident.
77.1 am going to the USA to have a_(far) study.
78 The Great Wall as well as the palace museum__(attract)lots of tourists from abroad every year。
79.We should do everything we can_(protect)the environment.
80。By 5:30yesterday afternoon he_(ftnish)writing the laboratory report.

Answer 1

71.mine指代我的父母
72.decision make a decision固定搭配做决定
73.was discovered被发现
74.nineteenth序数词第十九层
75.harmful 形容词，有害的
76.unluckily不幸的是
77.further比较级，表示程度上
78.attracts谓语用单数
79.to protect不定式表目的
80.had finished by＋过去时间用过去完成时

Answer 2

71. mine
72. decision
73. was discovered
74.nineteenth
75. harmless 无害的
76. Unluckily 大些首字母
77. further
78. attracts
79. to protect
80. had finished

Answer 3

mine
decision
was discovered
nineteenth
harmless
unluckily
further
attracts
to protect
had finished

Answer 4

1.mines 2.decision 3. was discovery 4.nineteenth 5.harmless 6.Unluckily 7.further 8.attracts 9.to protect 1o.had finished

Answer 5

71 we, 72 decision ,73 was discovered ,74 nineteenth,75 harmless, 76 As luck would have it, 77 far- 78 attract 79 to protect 80 had finished

Answer 6

1. neither      

2. decesion

3. was discovered

4. ninteenth

5. harmless

6.  Unluckily

7. further

8. attracts

9. to protect

10. had   finished