— Did you see the boys yesterday afternoon? — Yes. I saw them ________ the fence when I passed.
#94419
A
climb
B
climbed
C
to climb
D
climbing
推荐题目
__________ parents is very important for children. 
#95611
A
Communicating to
B
Communicate with
C
Communicated
D
Communicating with
—Who is the man ______ by a group of students there?—A professor _____ research on physics.
#89882
A
followed; did
B
following; did
C
followed; doing
D
following; doing