Is this the library? ________.
A. No, it is B. Yes, it is C. No, they aren’t
The doctor and writer________in Harbin last year.
| A．is | B．are | C．was | D．were |
My uncle came here _______the evening of October 7th.
| A．on | B．in | C．at | D．for |
—Is this your backpack?
—Yes, _______.
| A．This is | B．it is |
| C．it’s | D．it isn’t |
—What’s this?
—It’s_______.
| A．key | B．keys | C．a key | D．a keys |
_______, Linda. What’s this in English?
| A．Excuse me | B．Thank you |
| C．I’m sorry | D．Excuse |