Many people take pills to make sure they will achieve or maintain their desired weight＿＿＿it will lower their life expectancy（寿命）．
| A．so that | B．in that |
| C．even if | D．as if |
. It was not until 1920 _____ regular radio broadcast began.
| A．that | B．while | C．which | D．since |
As the young people in Nanning, we ought to do everything we can ________ our city more beautiful from now on.
| A．make | B．made | C．to make | D．will make |
. The new English teacher as well as the excited students _____ a new English song on the Internet.
| A．are learning | B．is learning | C．have learned | D．has been learned |
31. -----What do you suppose made her worried?
-----_____________ a gold ring.
| A．Because of losing | B．Losing | C．Lose | D．Lost |
Not only I but also Jane and Kate ___ tired of reading one book after another.
| A．is | B．are | C．am | D．be |