---If you have any trouble, please feel free to tell us.---_____A I’m glad to hear that B I will. Thanks very much C I’m sorry to hear that D I will think about.
Your son has kept _________ for two hours. You’d better ask him to have a rest.
A ____________person treats everyone____________.
At least 300 million people are using QQ_____ by Ma Huateng to chat online.
---- I’m very tired these days because of studying for exams. -----Why not _____ music. It can make you _____.
It’s kind ___________Simon to give us ________advice.