Tom, do you know if Sam ________to my party next week—I think she will come if she________ free.

Rather than ______ his own car work, he preferred ______ public transport.

Mr Song said that global warming was largely for the country’s frequent extreme weather in 2011 .

下列各句中，没有语病的一项是

．The middle-aged man said he would accept the job, so we have asked him to __________ his acceptance in writing.