If there ______ no water, there ______ no life on the earth.
#87991
A
is, would be.
B
was, was.
C
were, would be.
D
were, would have.
推荐题目
So far no life has been found outside the earth, but while some scientists are actively searching for living things in outer space, others firmly believe there ______.
#87593
A
ustn’t be
B
ay not be
C
an’t be
D
on’t be
---Where will you start your work after graduation?---Mmm, it's not been decided yet. I ____ continue my study for a higher degree.
#89634
A
need
B
must
C
would
D
might
time tomorrow, I would teach you how to play the piano.
#86947
A
Had I had
B
If I would have
C
If I have
D
Were I to have
He ________ all his aims. But his efforts in the past few years have been praise-worthy.
#86843
A
could have achieved
B
wouldn’t have achieved
C
must have achieved
D
may not have achieved
--Listen! Someone is singing in the next room．Who it be? Is it Wei Fang? --No．It be her．She is at school now．
#87878
A
can; may not
B
must; mustn’t
C
can; can’t
D
may; won’t