英语的几道选择题,填空题~

英语的几道选择题,填空题~
1.My g___ is 70,and she is my best friend.
2.【 】(they) are the students in Class 3.【 】（they) English teacher is Mr.green.
3.Tony and lisa 【 】Bob and Cindy's parents.
4.--What are those?
--【 】
A.They are apples tree.
B.They are apple trees.
C.These are apple trees.
D.those are apples trees.