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 prices of new houses in our city have been _____than before, but they ______ well at present．
#44834
A
lower, don’t sell
B
lower, are not still sold
C
higher, don’t sell
D
cheaper, are not still sold
He ______ as a national hero for winning the first gold medal for his country in the Olympics.
#44754
A
considered
B
was considered
C
has considered
D
has been considered
The number of people invited ______ fifty, but a number of them ______ absent(缺席) for different reasons.
#44499
A
were; was
B
was; was
C
was; were
D
were; were
Lots of trees ________in our city over the years. It is becoming greener and greener!
#44811
A
are planting
B
have planted
C
will be planted
D
have been planted