(       )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.我們不知道將來會發(fā)生什么事情。

We never know ____________ ____________ ____________ in the future.

7.    今年春天我們將要在學(xué)校后面種數(shù)百棵樹。

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

6.    使機(jī)器人真的像人類那樣思考將是很難的。

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

5.    如果建筑物倒塌，里面又有人，他們會很快趕過來。

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

4.    對孩子們來說，醒來就知道他們在哪里是容易的。

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

3.    邁克喜歡做和我們一樣的事情。

Mike likes doing____________   same things____________  us.

2.    他們相信將會有更多的機(jī)器人。 

They believe____________  there will ____________ more robots.

1.    已經(jīng)有許多機(jī)器人在工廠里工作了。

There are already many ___________________ in the factories.