用所给单词的适当形式填空。
【小题1】Betty usually ________（watch）TV at weekends with her sister.
【小题2】Would you like ________（cut）the birthday cake first, Lucy?
【小题3】The mother cuts the apple in ________（half）for the two children.
【小题4】The boys are ________ （lie）on the grass and playing games with their parents.
【小题5】Hong Kong and Macao are my favourite places, and I want to visit ________( they).