How can you expect him to make any progress ____ you never give him a chance to have a try?
| A．when | B．unless | C．even though | D．until |
相关试题
Had I mastered the statistic technique, a large amount of time and, energy.
| A．was avid | B．had been saved | C．will be save d |
D．would have been saved |
It is meetingside effect the new medicine will bring about, although the experts have tried it on about 2,000 patients.
| A．that | B．what | C．whether | D．which |
Now methods need to beto use the existing water resources, for example, turning sea water into fresh water.
| A．developed | B．assumed | C．abandoned | D．purchased |
More and more farmers arrive in our city for the money-making jobs the before leaving that Houston.
| A．were promised | B．have promised | C．promise | D．have been promised |
推荐套卷
粤公网安备 44130202000953号