7.haven't seen

8.stays-is staying

9.is always forgetting

10.wears-is wearing

11.is always losing

12.is combing

13.don't move

14.have eaten

15.have(you)been

7. I don't with my family now and we haven't seen each other for five years.

-----------thì HTHT---------

8. My aunt usually stays in a hotel when she comes to town ,but tonight she staying with us.

      thì HTĐ------------thì TTD

9. Tom is always forgetting doing his homework, which makes his teacher angry

có từ always và sự việc này gây ra phiền nhiễu đến người khác ⇒ thì HTTD

10. She somtime wears jeans to school, but today she is wearing a skirt

   thì HTĐ---------------- thì HTTD

11. My wife is always losing the key . She is careless

có từ aways và sự việc này gây ra phiền nhiễu đến người khác ⇒ thì HTTD

12. She is combing her hair at the moment

----------thì HTTD-----------

13. Turtles don't move quickly ." rùa di chuyển không nhanh chóng"

 sự thật hiển nhiên ⇒ thì HTĐ

14. This is the first time I have eaten steak

FORM : This is the first time + S + have/has + V3/-ed

15. How long have you been in Vietnam?

----------thì HTHT----------