If a man misses his home a lot, he must love his home and ________ his family．

A．learn about

B．talk about

C．care about

D．hear about

The tiger escaping from the zoo will do harm ________ some persons if you can't find it．

A．in

B．of

C．at

D．to

In 1879, Thomas Edison made the first light bulb, the bulb ________ be used in people's homes．

A．could

B．should

C．may

D．must

－Your dress is so nice．

－Thanks．It ________ by my mother as a birthday present．

A．buy

B．bought

C．was bought

D．has bought

During the earthquake, many buildings fell down．But the people there didn't ________ hope．

A．give away

B．give in

C．give up

D．give out

A traffic accident happened yesterday, but luckily, ________ of them were killed．

A．none

B．all

C．neither

D．both

We know ________ world would be a very different place without Thomas Edison．

A．an

B．the

C．a

D．/

Last Sunday I helped my mother ________ the cooking．

A．does

B．did

C．do

D．doing

It made Tom ________ happy to help the boy find his father．

A．felt

B．feels

C．feel

D．to feel

I like to see penguins very much ________ they are very cute．

A．so

B．because

C．and

D．but