用所给动词的正确形式填空

80. You had better get a doctor ______________ (pull out) your bad tooth.

81. It is the first time that he ____________(meet) the singer .

82. On the wall __________(hang) two beautiful pictures .

83. The school life he was used to _________(change) a lot since ten years ago .

84. The trees were cut down and that resulted in the city ___________(bury) by sand .

85. The old man urged that all the food ___________(buy) the next day .

86. The signs ______________ (indicate) the directions have been put up.

87. The experiment is being carried out, and it remains __________ (see) whether you are right or wrong  about the results.

 用所给动词的正确形式填空

1. He ________ (come) back a month ago.

2. In his letter, he said that he ________ (miss) us very much.

3. It’s said that the long bridge ________________（build） in two months.

4. You had better ________ (go) by bus, or you will be late.

5. Great changes ________________ (take place) in our country since 1978.

6. The lost boy ________________（not find） so far.

7. Every time he tried to start the car, the wheels ________ (sink) deeper into the mud.

8. We ________________ (play) football when it began to rain. We had to stop and go home.

9. Tom ________________ (come) here earlier. In that case we would have more time left.

10. There ________________ (be) a physics test next Monday.

根据句子内容和汉语提示，用所给词的正确形式填空（一空一词，每题1.5分，共15分,请把正确的词写在答卷纸上）

71. 1.John Snow wanted to face the _____________( 挑战 ) and solve this problem.

72. 2.He found that it came from the river __________( 污染 )by the dirty water from London.

73. 3.The southern part of Ireland was unwilling and _________(脱离) away to form its own government.

74. 4.For convenience, it is divided _________( 大约 )into three zones.

75. 5.At first my new ________(环境) were difficult to tolerate.

76.  6.These carriages float above the ground and by bending or _________(按，压) down in your seat.

77. 7.We are __________(高兴的) you are coming to work with us.

78.  8.__________(与此同时) you have to prepare the next question depending on what the person says.

79. 9.The functions of your skin are also very __________(复杂的).

80.  10.You can get burned by a _________(多样) of things: hot liquids, steam, fire, radiation ect.