The traffic rule says young children under the age of four and ______ less than 40 pounds must be in a child safety seat. 
#90708
A
being weighed
B
to weigh
C
weighing
D
weighed
推荐题目
---Why do you look so upset?---There are so many troublesome problems ____.
#94721
A
remaining to be settled
B
remained settled
C
remaining to settle
D
remained to be settled
The boy finally was beginning ___ his mistakes.
#97750
A
that he saw
B
for him to see
C
seeing
D
to see