（届河南省郑州市第四中学高三上学期第六次调考）
Tony ________ full marks, but he was so careless as to make a spelling mistake.
| A．could have gained | B．can have gained |
| C．must have gained | D．must gain |
To understand the grammar of the sentence，you must break it______ into parts．
| A．down | B．up | C．off | D．out |
He will tell you about it ____ you get there.
| A．while | B．as | C．when | D．/ |
The classroom is big enough , but we’ll have to move if we have more students.
| A．for the moment | B．on the moment | C．in a moment | D．for a moment |
We shall go ____ you are ready.
| A．while | B．as soon as | C．as | D．since |
Mark was a student at this university from 1999 to 2003, ____ , he studied very hard and was made Chairman of the Students' Union.
| A．during which time | B．for which time | C．during whose time | D．by that time |