By the time he realizes the mistake he ________，it will be too late for him to do anything about it.
#102873
A
has made
B
made
C
makes
D
will make
推荐题目
His sister left home in 1998, and_______ ever since.
#102075
A
had not been heard of
B
has not been heard of
C
had not heard of
D
has not heard of
An increasing number of students, year by year, across China ____ hard to realize their dream of studying abroad.
#100319
A
is trying
B
are trying
C
will try
D
have tried
The hotel which _______ now is to be a five-star one
#101083
A
is building
B
has been built
C
is being built
D
is to be built
Years ago we didn't know this, but recent science ______ that people who don't sleep well soon get ill.
#104011
A
showed
B
has shown
C
will show
D
is showing
--We ________ that you would fix the TV set for us.--I’m sorry, but I was too busy, so I ________.
#102801
A
had expected; had fixed it
B
expected; fixed it
C
had expected; had it fixed
D
expect; fix it