—What a beautiful city Quzhou is!
—Yes. Quzhou ________ a lot in the last few years.
| A．is changing | B．has changed |
| C．changing | D．changed |
The USA is a big country _______at any time.
| A．to visit it | B．to visit |
| C．visiting | D．for visiting |
—The Hang-chang high-speed railway（高铁） ____ in 2015.
—Really? That’s news to me.
| A．is built | B．builds |
| C．will build | D．will be built |
—May I smoke here，please?
—I am afraid you ．This is a non-smoking area．
| A．can | B．can’t | C．may | D．may not |
. The moonlight goes _____ the window and makes the room bright.
| A．across | B．through | C．over | D．in |