If you ________ home without a word, your parents wouldn't be so worried now.
#86490
A
didn't leave
B
couldn't have left
C
hadn't left
D
shouldn't leave
推荐题目
 If human beings had been a bit less greedy and cruel, more birds and animals _______dying out.
#89245
A
ought to avoid
B
could have been avoided
C
should have avoided
D
might have avoided
 I have lost one of my gloves. I _____ it somewhere. 
#89289
A
must drop
B
must have dropped
C
must be dropping
D
must have been dropped