________ many times，I still didn't know how to operate the machine.
#91844
A
Having taught
B
Having been taught
C
Being taught
D
Teaching
推荐题目
If they win the final tonight, the team are going to tour around the city ______ by their enthusiastic supporters.
#95052
A
being cheered
B
be cheered
C
to be cheered
D
were cheered
______ herself with other girls, she feels she is quite lucky.
#98243
A
Comparing
B
Compared
C
To compare
D
Being compared
The driver stopped the car a cat across the street.
#88877
A
to let; to walk
B
letting; walk
C
letting; walking
D
to let; walk
--- I had a hard time _____ this novel. --- I share your feeling. Who can remember the names of over 100 different characters?
#97171
A
getting through
B
taking over
C
giving off
D
putting down
Principal White has been working in the school for about 20 years, ____all his energy to teaching and researching as well as the running of a healthy school.
#89654
A
devoted
B
devoting
C
to devote
D
devote