Give the correct tense or form of verbs in brackets

Question II. Give the correct tense or form of verbs in brackets. (2,0 points)

1.  They wish they                    the appointment. (not forget)

2.  Last night, I was doing my homework while my sister___ games. (play)

3.  If it                        , we will stay at home. (rain)

4.  It's difficult                      used to getting up early. (get)

5.  A tree                        in the garden by the students yesterday. (plant)

6.  Nga asked Nhi if she _                Lai Chau city. (know)

7.  Ba would travel around the world if  he _        rich. (be)

8.  Mr. Jone_______        principal of our school since last year. (be)