You needn't have apologized for your absence_______, it' s hardly your fault.
| A．besides | B．therefore | C．however | D．meanwhile |
The conference will be put off until next week, _______ we will have made all the preparations.
| A．which | B．in which | C．when | D．on which |
If you work hard and finish it this week, you _______ have Monday free next week.
| A．shall | B．will | C．would | D．should |
The belief is generally held _______ communication skill is a must nowadays in hunting for a job.
| A．what | B．as | C．which | D．that |
He _______ in a university for five years, but now he runs a company of his own.
| A．has taught | B．had taught | C．taught | D．has been teaching |
Since you are here already, you _______ as well stay here and enjoy yourself.
| A．can | B．may | C．should | D．must |