– I cannot find my watch. I must have lost it.-- Don’t worry. Hopefully it will _____ somewhere one day.
The Australian boy has a good ______of Chinese and can communicate with others freely.
________time goes by,Mother’s hair has turned grey and the wrinkles on her face deeper.
Many questions ______ at the meeting, but he answered none.
----My sister is very upset today.----It’s your fault. You ________ the bad news to her yesterday.
They ________that immediate action be taken to stop the water pollution .