题目内容

6. We wonder robots will make humans lose their jobs or not.

   A. that   B. whether

   C. what   D. how

6.B
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2. —Look!They are working hard on math.

--I think they can a lot.

   A. invent   B. collect   C. progress   D. make

2. Mr. Green China for several years.

   A. has been to   B. has gone to

   C. has been in   D. came to

① 没有什么可怕的。

There is nothing.

1. is the population of our country? Do you know?

   A. What   B. How many

   C. Which   D. How much

2. Food (safe) is one of the most important things that we should pay attention to.

5. China has the population in the world.

   A. largest   B. most

   C. more   D. highest

2. you ever to keep our environment clean?

   A. Did;help   B. Will;help

   C. Are;helping   D. Have;helped

4. 我妈妈已经拥有(它) 很长时间了，但它仍旧能用。

My mom's it a long time but it still.

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