We must know what we should do and what we should avoid _______ a good impression on others in public places.
#88902
A
to leave
B
leaving
C
to have left
D
leave
推荐题目
The foreign guests,        by an interpreter, came out of the hall.
#92379
A
following
B
to follow
C
followed
D
to be followed
________ many times, he still couldn’t understand it.
#88586
A
Told
B
Being told
C
Having been told
D
Having told
They all appeared ___ this song before.
#97749
A
to learn
B
to have learned
C
to not have learned
D
not learning from