2014年国庆节期间,高速公路免费通行7座及以下小型客车。这有利于( )
Pleasant music is often played _________ classes to make students refreshed and relaxed for a while.
二、单项选择 Don’t worry too much about ________ mistakes. They’re ________ natural part of learning something.
—We’d better go downstairs right now for lunch. —__________ They serve food 24 hours a day.
Nowhere else, as his mother told us, __________ except the cabin in the backyard.
We’re all ready to put it into operation, ____________, we’re going to take action as fast as possible.