30．The novels written by the author sell best, but five years ago no one could have imagined how great a role he________in the literary world.
| A．was playing | B．played | C．was to play | D．had played |
________ Chai Jing said in her video about the smog has caused public concern.
| A．That | B．Which | C．How | D．What |
Mary has her weakness, ___________ that doesn’t mean she is not qualified for her job.
| A．and | B．yet | C．so | D．or |
---Tom, why don’t we help our son work on his papers?
---We’ve already done more than we ________．He is on his own this time.
| A．would | B．should | C．could | D．might |
The glorious moment would live in my mind ________ our football team won the championship.
| A．when | B．where | C．that | D．which |
According to the latest BBC news, a five-year-old boy from England _______ the youngest computer specialist in the world．
| A．became | B．becomes |
| C．had become | D．has become |