“Red envelope” fever on WeChat_ _ the country since January 26, 2015.
| A．swept | B．has swept |
| C．sweeps | D．will sweep |
He won’t join in the party. I won’t, _________.
| A．yet | B．either | C．also | D．too |
The price of this bicycle is quite _________. I don’t have enough money to buy it.
| A．low | B．rich | C．high | D．expensive |
My father _________ Beijing on business for three days. He will be back in two days.
| A．have gone to | B．has gone to |
| C．has been to | D．has been in |
Our teacher told us light _________ much faster than sound .
| A．travels | B．traveled | C．had traveled | D．will travel |
—________ have you been in this school?
—For two years.
| A．How often | B．When | C．How soon | D．How long |