until 和 till 均可引导从句或构成介词短语,充当时间状语。在句首或在正式用语中多用 until,而 till 主要用在口语中,大多数情况下用作介词。例如:They will live in Chicago until William finisheshis thesis.他们将在芝加哥住到威...
【问】[283]有这样一个句子:So little Hans worked away in his garden.请问这句话中的 away 是什么意思?【答】away 在这句话中是“不停地,继续不断地”(continuously,constantly,steadily)的意思,所问句子的意思是:于是小汉斯在花园...
一、若主句的谓语动词是现在时态,从句的谓语动词是非持续性动词,则从句的动词只能用一般过去式: 1.It is(or has been}two months since he fell ill.(不能用has or hadfallen ill)(自)他生病(以来)已有两个月了。 2.It has been(or is...
MET 90(A)卷的单项填空第34小题是: ——Excuse me,is this Mr.Brown’s office? ——I am sorry,but Mr.Brown__works here.He left about three weeks ago. A.not now B.no more C.not still D.no longer 按照题意,A,C两个答案显然是...