I was surfing the Internet my brother was doing his homework.
| A．after | B．because | C．while | D．When |
---Jack,there’ll be a party next Sunday.---________ .
| A．I don't know. | B．Yes, there’ll be. | C．Excellent ！ | D． Its’ basic. |
---Who wrote the book?---_______.but the book is interesting.
| A．I’m not sure. | B．Give me a break. |
| C．I don't believe it. | D．You know it. |
_______have you been to Tianjin?---Twice.
| A．How many | B．How many times | C．How | D． How many time |
There are ______visitors in Hangzhou every year.
| A．million of | B．millions of | C．million | D．milliones of |
What _____you ______ at 10:00 last night?
| A．did; do | B．were; doing | C．was ;doing | D．have; done |