When you are planting trees, the trees ________ straight in the hole.A．must putB
题型：不详难度：来源：
When you are planting trees, the trees ________ straight in the hole.| A．must put | B．must be put | C．are putting | D．is put |
|
答案
| B |
解析
试题分析：句意为：植树的时候，树必须直立放到坑里。根据语境，句子的主语是“the trees”，是动作的承受者，应用被动语态。故选B。 |
举一反三
--Would you like to go to the watertown with us this weekend?
--Thanks. I there twice. I hope you have a good time there.
A. went B. have gone C. have been |
–Why do you look so happy?
--I got good grade in English exam. My teacher said .
A. I was hard-working B. I am a good students C. I have worked hard |
– Will you go to the party?
– Of course I will if I ______.
A. am invited B. was invited C. will be invited |
– What’s that terrible noise?
– The neighbours ______ a birthday party.
A. have had B. are having C. will have |
– What were you doing when I called you last night?
– I ______ my homework and was going to bed.
A. did B. had done C. was doing |
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