The boy is running impatiently here and there as if____ something lost on the sports ground.
#95456
A
to search
B
searching
C
searching for
D
to search for
推荐题目
Please excuse me for _____ in without ______.
#94389
A
coming, asking
B
coming, being asked
C
to come, asking
D
to come, being asked
The split between humans and apes is believed by scientists______15 to 20 million years ago.
#90155
A
to be occurring
B
having occurred
C
to have occurred
D
to occur