As it reported, it is 100 years _____________ Tsinghua University was founded.
| A．when | B．before | C．after | D．since |
We sell all our clothes ______ very good prices.
A. at B. inC. On
—How much is the hat? —It’s only nine dollars.
—OK, I’ll ______it.—Here you are.
A. take B. need C. Like
—What can you ______ at the door?—Let me have a ______.
A. look; see B. see; look C. look; watch
—______, Jack, you are late . —Oh, dear. Where are my socks, Mum?
A. Come B. Come on C. Come in
—Is the black dog yours?—No it isn’t. It’s my ______.
A. grandparent’s B. grandparents C. grandparents’