The teacher tells his students to read the novel over and over again until they ______ it.
#104143
A
understand
B
understood
C
have understood
D
have been understood
推荐题目
Please give Jim the schedule for tomorrow's conference when he _______ back. He is to chairthe conference.
#100046
A
will come
B
came
C
comes
D
is coming
The professor you referred to in the letter______ us students three lectures by next Monday.
#100036
A
has given
B
will given
C
will have given
D
Gave
Do you know the thief_______by the police.
#101352
A
has been catching
B
has caught
C
has been caught
D
will caught
The number of foreign students attending Chinese universities ________ rising steadily since1990.
#104967
A
is
B
are
C
has been
D
have been
Where were you at lunch time? I a seat for you in the dining hall.
#104548
A
saved.
B
was saving .
C
have saved.
D
had saved.