If he_____his teacher" s advice, Asafa Powell would not be the fastest man in th

题型：不详难度：来源：

If he_____his teacher" s advice, Asafa Powell would not be the fastest man in the world.

A．didn"t follow	B．wouldn"t have followed
C．hadn" t followed	D．hasn" t followed

答案

解析

略

举一反三

As the saying goes, one is never too old to learn. After he _____, he will devote himself to gardening.

A．retired

B．has retired

C．will retire

D．had retired

题型：不详难度：| 查看答案

A lot of tents, drinking water and food ______ to the homeless earthquake survivors in the past several weeks.

A．are sent

B．were sent

C．have been sent

D．had been sent

题型：不详难度：| 查看答案

With the development of high technology, more and more new things _______ to the field of IT．

A．have introduced	B．are being introduced
C．were introduced	D．had been introduced

题型：不详难度：| 查看答案

Efforts to stop smoking in public areas _______ progress in Hangzhou in recent weeks．

A．made

B．have been made

C．have been making

D．are making

题型：不详难度：| 查看答案

I _______ the dance performance many times, each giving me a new understanding．

A．watch

B．watched

C．have watched

D．am watching

题型：不详难度：| 查看答案