After many failures the most difficult ______ is how to keep our strength up and

题型：不详难度：来源：

After many failures the most difficult ______ is how to keep our strength up and fight again.

A．chance

B．change

C．challenge

D．challenger

答案

解析

略

举一反三

We’d like to go and thank him ourselves, ____________we don’t have his address.

A．so

B．and

C．or

D．but

题型：不详难度：| 查看答案

---The traffic is heavy now, so Mike_________come late.
--- Let’s wait ten more minutes.

A．can

B．need

C．may

D．shall

题型：不详难度：| 查看答案

_________I know the exam isn’t difficult, I shall not worry about it.

A．As long as

B．As far as

C．In case

D．Even if

题型：不详难度：| 查看答案

250.Mr. Brown works in_________middle school. It is_________school built in the 16th century.

A．a, a

B．a, the

C．the, a

D．the, the

题型：不详难度：| 查看答案

Sorry, I’m late. The car _________down on my way here.

A．was breaking

B．has broken

C．had broken

D．broke

题型：不详难度：| 查看答案