To her joy，Della earned first the trust of her students and then ________ of her colleagues.
| A．that | B．one | C．ones | D．those |
10． Legend has ______ Sun Wu was buried here.
| A．what | B．that | C．it | D．One |
9．Not until the third day after the terrible earthquake ______ a phone call from his mother.
| A．he received | B．did he receive | C．didn’t he receive | D．had he received |
8．Without your kind help, we ______ in the experiment.
| A．cannot succeed | B．hadn’t succeeded |
| C．w ouldn’t succeed | D．couldn’t have succeeded |
7．Since you are here, you ____ as well stay here for long.
| A．can | B．may | C．must | D．Should |
6．What ______ great progress you have achieved in such ____ short time!
| A．a ; a | B．/ ; a | C．/ ; / | D．a; the |