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
--How long ___________ each other before they__________ married?--For about a year.
#104823
A
have they known;get
B
did they know; were going to get
C
do they know;are going to get
D
had they known; got
Please don’t phone him between 1 and 3 p.m. tomorrow. He _____ a lecture then.
#102843
A
has delivered
B
has been delivering
C
will be delivering
D
delivers
It ________ nearly two weeks ______ I had received his letter.
#104191
A
is, that
B
was, that
C
is since
D
was, since
The teacher, with 6 girls and 8 boys of her class, ________ visiting a museum when the earthquake struck.
#104774
A
was
B
were
C
had been
D
would be