－How was your day off yesterday?
－Perfect! It was ____ birthday of my grandpa’s . We had a big family celebration.
A. seventy B. seventieth C. the seventieth
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