Mr. Smith, who often helped passers-by repair their bikes, said that what he did was not paid but _______.
#10771
A
relevant
B
optional
C
suitable
D
voluntary
推荐题目
--- It’s five years since I was a singer. --- Not really!         ?
#11200
A
Are you a singer
B
How’s that
C
What do you mean
D
Is it a strange idea
The world’s population has grown by ______ it was in 1800.  
#14205
A
more than six times that
B
six times more than that
C
more than six times what
D
six times as many as
Son: I cheated in the exam and was caught by my teacher on the spot. Father: _______!
#11653
A
For shame
B
Cheer up
C
It’s a pity
D
Sorry to hear that