.Three-fourths of the surface of the earth_________sea.
#103355
A
is
B
are
C
were
D
has been
推荐题目
------- How are you today ? ------- Oh, I ______ as ill as I do now for a very long time .
#104037
A
didn’t feel
B
wasn’t feeling
C
don’t feel
D
haven’t felt
—Remember how we met for the first time, Dick? —Of course I do．You ______ to the teachers’ office hurriedly and ______ me．
#101601
A
had walked; weren't noticing
B
were walking; didn't notice
C
had been Walking; noticed
D
walked; had noticed
Before you leave the lab, the doors and windows ____shut in case of rain.
#103452
A
is
B
are
C
is to be
D
are to be
We expected there no problem with the publication of the book by now, but it is still being printed.
#104927
A
being
B
to be
C
to have been
D
having been
—Do you think he can get the first prize for jumping?—Impossible now. He to do so, but he has just hurt his leg.
#101990
A
has expected
B
is expected
C
would expect
D
was expected