根据句意用括号内所给词的正确形式填空:

1. My parents often tell me to listen to the teacher_______ (careful).

2. Every year, many_______ (visit) come to China to climb the Great Wall.

3. My brother is old enough to take care of _______ (he).

4. What's your _______ (weigh), Kate?  Oh, it's a secret.

5. People can't live _______ (with) air or water.

我国海商法规定，（）构成延迟交付货物。

A.承运人未能在明确约定的时间内交付货物

B.承运人未能在明确约定的时间以及约定的卸货港交付货物

C.承运人未能在明确约定的时间和通常交付货物的地点交付货物

D.承运人未在一段合理的时间内交付货物