—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
__________ parents is very important for children.
#95611
A
Communicating to
B
Communicate with
C
Communicated
D
Communicating with
The bridges over the Fuyang River have been rebuilt, _________ it possible for boats to sail.
#90887
A
to make
B
making
C
being made
D
to be made
—Who is the man ______ by a group of students there?—A professor _____ research on physics.
#89882
A
followed; did
B
following; did
C
followed; doing
D
following; doing
Our family sat in front of the television on the eve of the Spring Festival, happy___ the Spring Festival Evening Gala.
#88661
A
to watch
B
watching
C
watched
D
to have watched
There is no greater pleasure than lying on my back in the middle of the grassland, _____at the night sky.
#88389
A
to stare
B
staring
C
stared
D
having stared