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 game __________ by all the students.
#44707
A
enjoys
B
enjoyed
C
enjoying
D
is enjoyed
 To make our city more beautiful ,rubbish ______ into the river.
#44541
A
must throw
B
can’t throw
C
needn’t be thrown
D
mustn’t be thrown
--Are you often          on vacation?   -- Not always.
#44642
A
relax
B
relaxing
C
relaxed
D
to relax
Every year lots of trees ____________ to make our country more beautiful.
#44817
A
is planted
B
was planted
C
are planted
D
were planted
The injured man _______ to hospital by a driver yesterday.
#44840
A
takes
B
took
C
is taken
D
was taken