How long ______ teaching? Forty years.A．he will have beenB．will have he beenC．wi

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How long ______ teaching? Forty years.

A．he will have been	B．will have he been
C．will have been he	D．will he have been

答案

解析

略

举一反三

Many students preparing for the midterm examination.

A．are engaging in	B．are engaging themselves
C．are engaging themselves	D．are engaged in

题型：不详难度：| 查看答案

The manager ________ excited when he learnt the project ________ well.

A．sounded；was progressed	B．was sounded；progressed
C．sounded；was progressing	D．was sounded；would progressed

题型：不详难度：| 查看答案

The teacher told us that light ______ faster than sound.

A．traveled

B．had traveled

C．is traveling

D．travels

题型：不详难度：| 查看答案

In the past 5 years a great deal of money _____ improving the environment of the school.

A．is spent

B．has been spent

C．was spent

D．had been spent

题型：不详难度：| 查看答案

The Food and Drug Administration that anyone who too much the drug
suffer side effects.

A．warned; took; will	B．has warned ;takes; may
C．warns; took; must	D．has warned; will take; need

题型：不详难度：| 查看答案