用适当的介词填空

Last year we went to Shanghai 　　  　 our parents.

用适当的介词填空

I haven't heard 　  　　 Mary for a long time.

根据句意填入恰当的词语

Please cover the meat 　  　　 a cloth.

根据句意填入恰当的词语

How often do you hear 　  　　 your parents?

根据句意填入恰当的词

The meeting won't be over 　　  　 five in the afternoon.

根据句意填入恰当的词

We go to school every day 　　  　 Saturday and Sunday.

根据句意填入恰当的词语

Have you ever 　  　　 to a foreign country?

根据句意填入恰当的词

He was very busy 　　　   the moment.

根据句意填入恰当的词

Women in Beijing usually cover their heads 　　  　 a piece of cloth in windy weather.

根据句意填入恰当的词

The farmers are usually busy 　　  　 their farm work at this time of a year.