. 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
I think you should complain, _____, of course, you are happy with the way things are.
| A．until | B．although | C．when | D．unless |
Rescuers had to _____ the search because of worsening weather conditions.
| A．call off | B．take off | C．come off | D．cut off |
—Are you sure Mike will help us if we are in trouble?
— _____. He is a reliable friend.
| A．It doesn’t matter | B．Don’t take it to heart |
| C．You can count on it | D．No problem |
Nowhere else _____ be able to find a larger display of sea animals, including one of the largest collections of sharks in the world.
| A．you will | B．can you | C．could you | D．will you |
It ___ recently that self-funding foreign students are becoming the largest overseas group in China.
| A．gave out | B．put out | C．figured out | D．turned out |