change sentences into passive voice
1 i will give you a gift tomorrow
2. we ought to visit my classmates in the hospital.
3.they must sell their house.
4. he may buy a new building
5.we shall share this information with you
6.you should protect our environment
7.i can write english essays
8.my parents don't have to work at night
9.my teacher isn't going to visit Ha Long Bay next week
10Students have to wear uniforms at school
12.Linh might send you that book
13.Thoa would drive her car to Uong Bi city
14 He can't answer the examiner's questions
15 Thuy is going to do the chores at home on Sundays