B. 用所给词的适当形式填空。
【小题1】They are from America. One of ________ (they) is a girl.
【小题2】I’d like _________ (go) to the market.
【小题3】_________ (buy) a present for mum is a good idea.
【小题4】My father buys a bag of ____________ (strawberry).
【小题5】She spends all her free time _________ (play) computer games.