— What has made him unhappy recently?— __________ alone to do the house work.
#88655
A
Left
B
Being left
C
Having left
D
To leave
推荐题目
_____ the teacher's suggestion, Tom finally found a way to settle the problem.
#98593
A
Following
B
To follow
C
Follow
D
He followed
. I like getting up very early in summer. The morning air is so good _________. 
#98524
A
to be breathed
B
to breathe
C
breathing
D
being breathed
I have learned that clothes ______ online are of poor quality.
#88561
A
bought
B
buying
C
to buy
D
having bought
Time________, I can have done it better. 
#97407
A
permit
B
be permitted
C
permitting
D
to permit