In order to find the missing child，villagers ________all they can over the past five hours.

There is nothing wrong with your mobile phone,__________— _________,I’ll have Uncle Wang _________it.

Smile when ______ the phone. The caller will hear itin your voice.

Listen! Is it Linda singing in the next room –No, it __________ be her. She is still in Shanghai.

It’s patient ________ our teacher to spend a lot of time ________ things to us patiently.