Amy is always ready to ____ (help) her classmates.
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Remember to close the window before you ___ (leave)
She tries her best ____ (keep)in touch with her old friends.
根据示例改写句子。Example: They build this hotel with a lot of ice and snow.This hotel is built with a lot of ice and snow (by them).The waitress will bring you a cup of coffee as soon as possible.
They serve breakfast at 7:00 am.