He ____ busy then; otherwise, I believe, he would have given you a hand．
| A．had been | B．were | C．must be | D．was |
A direct air route ___ Chongqing and San Francisco is expected to open next month
| A．linking | B．being linked |
| C．link | D．linked |
Online shopping is becoming ___ rising industry for China, as the country is ___home to the world's largest online population．
| A．不填;the | B．a;the |
| C．the; 不填 | D．a; 不填 |
After the exciting football game, he didn't feel ___ desire to sleep．
| A．the less | B．the least |
| C．the more | D．the most |
The poor little girl longed for a lovely Barbie, ___ her mother could never afford．
| A．that | B．the one |
| C．one | D．it |
— How are you, my dear?
— Not so well． I've ___ the flu．
| A．looked up to | B．dropped in on |
| C．come down with | D．gone in for |