Along with the letter was his promise __________ he would visit me this coming Christmas.
| A．which |
| B．that |
| C．what |
| D．whether |
Our nation should first develop modern law __________ in ruling the country by law．
| A．awareness | B．opportunities |
| C．regulation | D．principle |
__________ on Wechat is a common phenomenon, and more people hardly write letters．
| A．Communicate | B．Communicated |
| C．To communicate | D．Communicating |
People are __________ shoppers in China on November 11th, contributing to more than 35 billion online shopping sales．
| A．potential | B．enthusiastic |
| C．intelligent | D．temporary |
— Didn‘t you talk any with Rice?
—No, the plane __________ off when I rushed to the airport to see her off．
| A．was taking | B．had taken |
| C．took | D．has taken |
—Look at those clouds!
—Don‘t worry． __________ it rains, we‘ll still have a great time．
| A．Even if | B．In case |
| C．As though | D．If only |