More and more people have realized that we won’t have cleaner water to drink unless something _______soon.
#44577
A
is done
B
was done
C
will be done
D
to be done
推荐题目
The 30th London Olympic Games ____________ on July 27th, 2012.
#44703
A
will be held
B
is held
C
was held
D
has been held
When he was at college, he and his friends to organize a party.
#44647
A
are asking
B
were asked
C
was asked
D
asks
This kind of flower well these days. Would you like to have one?
#44896
A
sell
B
sells
C
are sold
D
is sold