If it ______ tomorrow, we’ll go roller-skating. [ ]
If itrain tomorrow,we’ll go on a trip.
Tom often makes his brother___but yesterday he was made___ by his brother.
__________ volunteers will be needed for 2014 International Horticulture Exposition (国际园艺博览会) in Qingdao.— Let’s go and join them.
We’re tired because we have ________ yin.