(       )2. I ____________  to the moon and Mars rockets in the future.

A.   will walk; by       B.  will fly； take
C.  will flyj by          D.  will go; take

(       )1. ____________  difficult to work out these problems in five minutes.

A.  It's           B. This's

C.  That's          D. Its

8.我们不知道将来会发生什么事情。

We never know ____________ ____________ ____________ in the future.

7.    今年春天我们将要在学校后面种数百棵树。

We will plant ____________ ____________   trees behind our school this spring.

6.    使机器人真的像人类那样思考将是很难的。

____________ ____________ ____________ difficult to make robots really think like a human.

5.    如果建筑物倒塌，里面又有人，他们会很快赶过来。

If buildings________ ____________ ____________  people inside? they'll arrive quickly.

4.    对孩子们来说，醒来就知道他们在哪里是容易的。

It's easy for children____________ ____________ ____________  and know where____________ ____________  .

3.    迈克喜欢做和我们一样的事情。

Mike likes doing____________   same things____________  us.

2.    他们相信将会有更多的机器人。 

They believe____________  there will ____________ more robots.

1.    已经有许多机器人在工厂里工作了。

There are already many ___________________ in the factories.