After walking on the zigzag path to the mountain top for a few hours, the tourists gathered under trees_____ shade and______ down to have a rest.
#93590
A
provided; sit
B
providing; sitting
C
providing; sat
D
provided; sat
推荐题目
Mr.Smith was very glad _____ as the manager of  the company.
#93725
A
being appointed
B
having appointed
C
to have appointed
D
to have been appointed
________ that I was a regular visitor, the servant let me in.
#97711
A
Having seen
B
Seen
C
Seeing
D
To see