When we visited Zhou Zhuang again ten years later, we found it changed so much that we could hardly ________ it.

It is the respect for universal rights, our respect for different cultures, and our _________ to international laws that guide China's openness to other countries.

 The Chinese teacher asked her to _______ unnecessary words and sentences.

Always remember to put such dangerous things as knives out of children’s ________.                                                                     (2011·四川，13)

She ________ in his English till now , but Wei Hua still works hard in order to be____ at it.