________ thousands of Chinese students，Chuck has vast experience in the Chinese class.
#95700
A
Having taught
B
Taught
C
Teaching
D
To have taught
推荐题目
After hearing the bad news, Susan found herself of it from time to time while at work.
#91583
A
to think
B
thinking
C
though
D
having thought
Square dancing ________ to help maintain fitness has caused conflicts between the Damas and the neighboring residents.
#88549
A
claiming
B
claimed
C
having claimed
D
to claim
Although ________ about fatness，she still has confidence in her performance of daily life.
#94360
A
teased
B
teasing
C
tease
D
to tease