____ the days he had spent with his American friends, he couldn’t help_____.
#95455
A
Keeping up; smile
B
Staying up; smiling
C
Looking back on; smiling
D
Looking at; to smile
推荐题目
We don’t allow _______in the office．But you are allowed _____ in the rest room．
#96638
A
smoking; smoking
B
to smoke; to smoke
C
smoking; to smoke
D
to smoke; smoking
The ________look on his face showed that he hadn’t expected it.
#94276
A
astonished
B
astonishing
C
being astonished
D
having astonished
This machine is very easy _______. Anybody can learn to use it in a few minutes.
#90906
A
operating
B
to be operating
C
operated
D
to operate
Studies show that MP3 people have made much use of _____ music may be causing hearing loss.
#97396
A
enjoy
B
to enjoy
C
enjoying
D
enjoyed
___ three times in a row, the boxer decided to make a fourth attempt, though．
#96700
A
Having defeated
B
To have defeated
C
Having been defeated
D
To defeat