It is hard for people in the country to believe that the soldier could survive in such ________ weather conditions.[ ]

I’ll leave him a note _______ he’ll knowwhere we are.

Why do you admire Mr. Hu so much— Because he is the person ______ helps us learn much knowledge.

We hope our country can _______ a way to solve theproblem of Diaoyu Island.

I can’t carry the big box. Can you help _____?