1.It is as pleasant ----day as I have ever spent.

1。It is as pleasant _B___day as I have ever spent。A。a B。the C。\ D。an特指,这是我所度过的最快乐的一天啦。2。 Hundreds of jobs___B_if the factory closes。A。lose B。will be lost C。are lost D。will lose表将来,再是被动3。He _B___in this college for five years before Icame here to study。A。has been B。had been C。have been D。is studyingI came here to study发生在过去,而他在这所大学已经待了5年,发生在过去的过去,所以是过去完成时4。How__B__can you finish the drawing?A。often B。soon C。long D。rapidhow often多久一次,不对how rapid。不是问时间how long与how soon都可以用来提问时间。 但是how long一般用于提问完成时,例如： How long have you been there?-I have been there for 3 years。 而how soon是用于提问将来时的,例如： How soon will you arrive here?-I will arrive here in 3 hours。 换一个说法。如果答句中用的介词是for前面就要用how long；如果是in,前面要用how soon how long指的是多长时间,多长的长度 比如:how long have you been collecting dolls 你收集玩具多长时间了? how soon指的是多快, 比如how soon will you be there?你多快能到那儿?5。---___A__the blackboard ,Mary? ---It is your turn。I did it yesterday。A,cleaning B。you clean C。to lean D。don't clean 动名词作主语,就是ing形式B不符题意,C表目的,不对,D也不符题意