We should protect the earth， we will have no water to drink．
#58271
A
so
B
or
C
and
D
but
推荐题目
—Where are Tom and Mary? --____ Tom _____ Mary is busy with their homework. You’d better play with.
#57674
A
Both, and
B
Neither, nor
C
Either, or
D
Not only, but also
— What shall we do now?— __________ it’s raining hard, let’s stay at home.
#55887
A
So
B
Since
C
Though
D
Otherwise
We still gave the boy another chance ______he made some mistakes.
#55381
A
though
B
when
C
unless
D
because