Chọn từ thích hợp

----- Nội dung dịch tự động từ ảnh -----
9. You (not/ need)
to pay the shipper because the stamp says FREE SHIPPING.
10. We have to (stop)
talking when the lesson starts.
11. The students (take)
the test yet?
12. She (take)
an umbrella now. She thinks it will rain later.
13.I (leave)
the party early last night because I felt exhausted.
a friend of mine. We (go)
14. After lunch I (meet).
you like to come along?
15. We (climb).
shopping. Would
the mountain at this time next Saturday.