The volunteers      a lot of help to the community for nearly ten years.
#36876
A
offered
B
are offering
C
will offer
D
have offered
推荐题目
Fish ________ without (没有)water .
#42450
A
dies
B
is dying
C
won’t die
D
will die
—Excuse me, Mum. When can we have dinner? —Not until it   in half an hour.
#36824
A
is prepared
B
has been prepared
C
will be prepared
D
was prepared
I don’t know if he  ______ here tomorrow. If he  _______ , I will tell you. 
#41565
A
comes; comes
B
will come; will come
C
will come; comes
D
comes; will come
Trees and flowers ________every year to make our country more beautiful. 
#36894
A
is planted
B
was planted
C
are planted
D
were planted