—I have been waiting for you so long. —Sorry, I have been in the library, _______ my friend look for some books.
#94750
A
helped
B
helping
C
to help
D
help
推荐题目
There are some health problems that，when ________ in time，can become bigger ones later on. (2013·浙江，19)
#88745
A
not treated
B
not being treated
C
not to be treated
D
not having been treated
____ the TV play, he got down to ____ his homework.
#96801
A
Watching; do
B
After his watching; do
C
Watched; doing
D
Having watched; doing
__________ to train his daughter in English, he put an advertisement like this in the paper, __________an English teacher for a ten-year- old girl.
#89729
A
Determined, wanting
B
Determined, wanted
C
Determine, wanted
D
Determining, wanting
These robbers are sure __________.
#97479
A
to punish
B
to be punishing
C
being punished
D
to be punished