The experiment, _____ to test the theory, will be carried out tomorrow.
A. intending B. intended C. to intend D, having intended
简单句：陈述句、疑问句、祈使句、感叹句与并列结构、并列句与并列连词及常用与特殊句型、语序
. Tim seldom failed in his exam, ________?
| A．did Tim | B．didn’t Tim | C．did he | D．didn’t he |
. The man standing there can’t be a university student, ________?
| A．can he | B．is he | C．does he | D．has he |
. He must be curious about everything in the lab, for this/that/it is the first time that he has been there, ________?
| A．isn’t he | B．mustn’t | C．isn’t it | D．hasn’t he |
. You have must practiced speaking English for a long time before the contest is held, ________?
| A．mustn’t you | B．didn’t you | C．haven’t you | D．isn’t it |
. Mary is barely a diligent girl, as it is the fourth time she has been sleeping in class, ________?
| A．is she | B．isn’t she | C．isn’t it | D．hasn’t she |