1.
a, I phone him but no one answers . he ----- (be) out
b, I haven't phone Ann for years . I -----( phone ) her to night
c, visitors ------(feed) the animals in the zoos
2.
a, my car is very dirty . it needs ------------(wash)
b, the car is not very dirty . you needn't ------------(wash) it
c, if you want to pass the final exam , you -------------(study) hard
d, you --------------(smoke) . it is harmful
e, children ----------(wear) uniform when going to school
f, yesterday , I felt very ill . I ----------(see) the doctor
h, my car is dirty . I need -------------(wash) it