The manager was satisfied to see many new products ______ after great effort.
#88381
A
having developed
B
to develop
C
developed
D
develop
推荐题目
I got to the office earlier that day,   the 7:30 train from Paddington
#90663
A
caught
B
to have caught
C
to catch
D
having caught
 I was deep in thought, so I didn't notice _____.
#98297
A
him to come in
B
him come in
C
he come in
D
him coming in