It isn’t the first time that I have found myself in an embarrassing situation.
(5)在no sooner…than…, hardly/scarcely…when/before…句型中，主句常用過(guò)去完成時(shí)。
(6)其他與完成時(shí)連用的時(shí)間狀語(yǔ)：all this f1411.cn while, all this year, for some time, so far, already, before, just, long, yet等。
4.完成進(jìn)行時(shí)指動(dòng)作在完成時(shí)的基礎(chǔ)上還要繼續(xù)下去。如：
The company has been promising a rise in salary for ages, but nothing has happened.
The school board listened quietly as John read the demand that his followers had been demonstrating for.
時(shí)態(tài)、語(yǔ)態(tài)答題思路：
(1)先根據(jù)選項(xiàng)的區(qū)別點(diǎn)確定考題要點(diǎn)為時(shí)態(tài)，然后回到題句中尋找給出的或暗示的時(shí)間狀語(yǔ)，縮小選擇范圍，進(jìn)而選出正確答案;
(2)根據(jù)謂語(yǔ)動(dòng)詞與句子主語(yǔ)或非謂語(yǔ)動(dòng)詞與其邏輯主語(yǔ)的關(guān)系，確定句子是主動(dòng)語(yǔ)態(tài)還是被動(dòng)語(yǔ)態(tài)。
