The water in the river nearby will be dirtier than before if nothing __________.
#52543
A
has done
B
will be done
C
is done
D
was done
推荐题目
--- What did the policeman say to you, Liu Ying?--- He told me ______ my purse in the bicycle basket. It’s too dangerous.
#55272
A
not put
B
to put
C
don’t put
D
not to put