Each year, ________ fishes are killed by the polluted water and many people are made sick by the polluted air．

A．millions of

B．million of

C．two millions of

D．two millions

What do people usually do ________ Christmas Day?

A．in

B．at

C．/

D．on

Mum is busy at home ________ the dinner．

A．prepares

B．preparing

C．prepared

D．prepare

We are looking for some students ________．

A．who is honest

B．who are honest

C．who he is honest

D．who they are honest

Santa Claus is looking for someone who ________ nearby．

A．lives

B．living

C．live

D．have lived

Many students can work ________ a computer now．

A．on

B．for

C．by

D．before

We need some doctors who ________ to make sick people better．

A．like

B．likes

C．is like

D．liked

Betty is a girl ________ is always kind ________ others．

A．who; for

B．who; to

C．which; for

D．which; to

I've lost my pen．I'm ________ it everywhere．

A．looking at

B．looking after

C．looking out

D．looking for

根據(jù)句意從括號中選擇正確的單詞并填寫在空白處。

You should ________(take care, care)for others．