Where do climbers put their empty oxygen bottles? A. On the ground B. In trash cans C. On their back D. In their tents
Where do climbers put their empty oxygen bottles?
A. On the ground
B. In trash cans
C. On their back
D. In their tents
Lời giải:
Đáp án: A
Thông tin: When the oxygen bottles are empty, people throw them on the ground.