. Going out for tea with friends increasingly popular during the past twenty years.
| A．becomes | B．became | C．has become | D．had become |
Key: C
The electronic red-packet has been so ______ that AliPay and Tencent Wechat compete against each other openly and secretly since the beginning of this year.
| A．popular | B．convenient |
| C．favorable | D．arbitrary |
The Spring Festival is the most joyful time of the year, but it can also be ______ . With all the traveling, visiting relatives, and gift-buying, the holiday can become a tense time for many families.
| A．beneficial | B．optional |
| C．commercial | D．stressful |
He made up his mind to enjoy his guitar and to accumulate as many happy experiences as he could so that when he retired he wound be able to ______his life with satisfaction.
| A．get away with |
| B．make up for |
| C．look back on |
| D．put up with |
There is a beautiful Chinese song called I Came Over the Ocean to See You. Why not do that in reality on this Valentine’s Day? Keep your plan a secret and ______suddenly.
| A．show up | B．cut in |
| C．show off | D．cut down |
As well as teaching soccer's basic skills and rules, the introduced textbooks will ______team spirit and sense of responsibility.
| A．multiply | B．distinguish |
| C．preserve | D．develop |