用所给词的适当形式填空
(1)I'll remember (mail) these letters.
(2)We're looking forward to (hear) from you.
(3)Yesterday I (buy) a new dress at the Macy's for my mum
(4)Madee   (lie) in her bed now.
(5)Look! The old man is sitting      (quiet),reading today's newspaper.
(6)Take the fourth   (turn) on the right.
(7)One of the red key rings belong to    (he).
(8)Do you think the people there are  (friend) to you?
(9)Let's go the supermarket,  we?(will)
(10)When I passed the classroom, I heard a girl (sing)in it.