(2013·浙江，8)Eye doctors recommend that a child's first eye exam ________ at the age of six months old.
#86621
A
was
B
be
C
were
D
is
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From what I learn about their hotel, the service and the weather, they their holiday very much.
#88226
A
couldn’t have enjoyed
B
shouldn’t have enjoyed
C
needn’t have enjoyed
D
can’t have enjoyed
Look at the clock! It's time ______ work.
#90300
A
we started
B
we'll start
C
we're starting
D
we have started
. I supported him in time , otherwise he ______ off the bike .
#89506
A
might fall
B
would fall
C
should have fallen
D
would have fallen
I was supposed ____ her, but I failed.
#87177
A
to help
B
to have helped
C
to be helping
D
will help