All the essays _____________, the teacher sent the students home.
#102948
A
having written and collected
B
having been written and collected
C
being written and collected
D
to be written and collected
推荐题目
 You __________ to leave until you __________ your work.   
#102260
A
won’t be allowed; have finished
B
won’t allow; finish
C
won’t be allowed; will finish
D
won’t allow; will finish
—Bob has gone to California.—Oh, can you tell me when he        ?
#101937
A
has left
B
left
C
is leaving
D
would leave