Nowadays English ________(正起着重要作用)in our daily communication．

If you want to pass the test, you must grasp ________(一系列广博的知识)．

Every ________ needs to fill in an ________ form first．(apply)

A similar technique can ________(被运用到)the treatment of cancer．

The principle of diligence and frugality ________(适用于)all undertakings．

I want to ________(申请)the job．

It took all his ________(concentrate)to keep calm．

Quit talking and ________(专心工作)．

After a certain age, you have to work hard to ________(保持身材)．

I couldn't ________(明白)what the teacher was talking about．