The government is doing__________to protect the environment.
A.useful something
B.something useful
C.anything. useful
—How do you like this passage?
—There are so many new words in it that we can__________understand.
A.really B.nearly C.hardly
—Have you cleaned the room yet？
—Yes，I _______it an hour ago.
A.clean B.has cleand C.cleaned
Which of the following signs means “Throw litter here.”？
A. 
B. 
C. 
— When did you close friend go________?
—At the age of forty,after a fever,he couldn’t hear anything..
A.blind B.deaf C.mad
—We should learn to avoid______the same mistake in each exam.
— I agree with you compeletaly.
A.to make B.making C.made
