Mr. Brown will come to our school next Friday，________we'll have finished the whole work.
| A．by that time |
| B．by which time |
| C．by then |
| D．by the time |
The ______ flights between the mainland of China and Taiwan will benefit more travelers.
| A．common | B．normal | C．average | D．regular |
Oh, I’m not feeling well in the stomach. I ________ so much fried chicken just now.
| A．shouldn’t eat | B． mustn’t have eaten |
| C． shouldn’t have eaten | D． mustn’t eat |
His humorous closing speech was a welcome addition to the ______dull meeting．
| A．therefore | B．meanwhile | C．otherwise | D．thus |
______ you keep on trying ,I don’t really mind whether you can come top in your class.
| A．So long as | B．As soon as | C．Once | D．The moment |
---- I haven’t found any money though I’ve searched the drawer bottom up.
---- Then, I’m afraid there is ______ left.
| A．nothing | B．no one | C．none | D．neither |