Mr. Lin gave us some _____ how to learnEnglish well last week.

Four-fifths of the crop ______.

His bike is broken. He asked if I would like to share with him.

Thousands of rockets ________ with chemicals were fired into the sky to create the beautiful scenes in the Asian Games [ ]

________ it is expected that students come to college with the ability to solve most problems in their study by themselves , this is not always the case