Chia động từ sao cho phù hợp với chủ từ

Ex1 chia động từ sao cho phù hợp với chủ từ
36.They often(visit) their parents on Saturday.
37.She ............ (study)now?
38.My and I always (go)to the countryside.
39.He............(not be) at home now.
40.Hanh(not read)book at the moment.
41.Our teacher usually........(give)us many exercises.
42.He often..........(catch)a train to work
.43The cat..............(catch)mouse
44.They.....(phant)trees over there at the moment
45.My old friend.Manh.........(write)to me twice a month.