问题
选择题
We shall be landing at Hongqiao Airport shortly, please ______ your seat-belts.[ ]
A. fasten
B. sharpen
C. weaken
D. strengthen
答案
答案:A
We shall be landing at Hongqiao Airport shortly, please ______ your seat-belts.[ ]
A. fasten
B. sharpen
C. weaken
D. strengthen
答案:A