________is dangerous for us to swim in the river alone.
#69981
A
Anything
B
Something
C
Everything
D
Nothing
推荐题目
This computer is old, but it is ______ to me because it was a present from my dearest grandpa.
#70585
A
great important
B
of little importance
C
of very important
D
of great importance
There isn’t going to be any pollution in the future, _________?
#69657
A
be there
B
be not there
C
is there
D
isn’t there