The archaeologists found gold coins and pottery in the lowest level of the site ________ they reached three months ago.
Is this the school______________you studied ten years ago?
You may___________he will come here to give us a hand.
Many audiences listened to his speech very attentively from the very beginning to the end, my parents ___________.
___________the car came out, we started doing market research.
.It is said that pandas ___________ in our country year after year.