— 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
The students are forbidden____ , unless they have special passes after 11 p.m. in the school.
#95842
A
to stay out
B
from staying out
C
staying out
D
not to staying out
It remains ________ whether the students will benefit from the monthly exams.
#95740
A
seeing
B
to be seen
C
to see
D
to have seen
 He was reading his book, completely _______ to the world. 
#98437
A
lost
B
losing
C
to lose
D
to have lost
These clothes are very dirty.They need ___.
#97759
A
washing
B
to wash
C
wash
D
washed