When he ______the door, he found his keys were nowhere.
#88230
A
would open
B
opened
C
had opened
D
was to open
推荐题目
The old man needs _________ .
#94460
A
looking after
B
being looked after
C
to look after
D
look after
 ______ is a good form of exercise for both the old and the young.
#88215
A
Walk
B
To walk
C
Walking
D
The walk
Anyone _______ bags, boxes, or whatever, was stopped by the police.
#98442
A
seen carry
B
seen carrying
C
saw to carry
D
saw carrying