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 is sometimes of great _____ to explain to the patient what is happening.
#13888
A
technique
B
signal
C
importance
D
freedom
Old-fashioned phones matter when wireless networks _____in disasters.
#13847
A
turn down
B
turn out
C
break down
D
break out
Each member country of WTO must ________ its laws and regulations and compete on the principle of fairness and cooperation.
#12121
A
submit to
B
cater to
C
correspond to
D
relate to
The house rent is expensive. I’ve got about half the space I had at home and I’m paying _________ here.
#14078
A
as three times much
B
as much three times
C
much as three times
D
three times as much