選B.一般過去時表示在過去某個時間發(fā)生的動作或狀態(tài)；而過去完成時表示在過去某一時間之前完成的動作.根據(jù)句意,我參觀水立方兩次均發(fā)生在我當(dāng)志愿者期間,而不是之前,故選B.再比如：
Have you had your lunch?
Yes,I had it at 12:00.
2.I got to the station at 8:00,but the train had left.
3.I got to the station at 8:00,but the train left at 7:30.
4.By the end of last year,we had learned 1000 English words.
5.When I arrived home, my parents had had dinner.
6.When I arrived home, we had dinner together.
Have you ever visited the Water Cube?Yes.When I served as a volunteerin Beijing,I it twice
Have you ever visited the Water Cube?Yes.When I served as a volunteerin Beijing,I it twice
A.have visited
B.visited
C.had visited
D.had been visiting
為什么不選C
A.have visited
B.visited
C.had visited
D.had been visiting
為什么不選C
英語人氣：103 ℃時間：2020-03-19 13:35:28
優(yōu)質(zhì)解答
我來回答
類似推薦
- Do you have___water?yes,i have ____
- Did you have anyone water the trees?Yes,I had the trees watered.
- Did you have anyone ( ) the trees?Yes,I had them ( ).A to water,water B to water,watered
- —Did you have anyone ______ the tree? —Yes,I did.—I had someone ______. (water）
- —Did you have anyone ___(water) the trees? —Yes,I had them ___（water) this morning
- 右圖中空白部分的面積比陰影部分大24平方米,求陰影部分的面積
- 不需要反映條件
- 小學(xué)英語每單元課可以分為哪幾類
- 作文《生活因母愛而精彩》400-500字
- 閱讀理解《諾貝爾文學(xué)情結(jié)》答案
- 一個梯形的下底是上底的三倍,如果將上底延長六厘米,就成一個平行四邊形,這個梯形的上底和下底是多少厘
- 月末企業(yè)銀行存款日記賬余額為180000元,銀行對賬單余額為170000元,經(jīng)過未達(dá)帳項(xiàng)調(diào)節(jié)后的余額為160000元,則對賬日企業(yè)可以動用的銀行存款實(shí)有數(shù)額為多少元?
猜你喜歡
- 1同桌抄我作業(yè)
- 2把一根木料鋸成相等的7段,每段所用的時間占鋸這根木料總時間的幾分之幾?
- 3水浴加熱 當(dāng)燒杯內(nèi)的水到100℃后試管中的水為什么不沸騰?
- 4小麗捐出了零用錢的一半多20元,這是還剩下100元,小麗求原有多少元
- 5(2X減三）平方等于根二(2X減三）的解題過程
- 6若某原子的摩爾質(zhì)量是M g/mol,則一個該原子的真實(shí)質(zhì)量約是多少?
- 71、下面___是合法的字符型常量.A.ABC$ B.“ABD”C.ABC D.ABC’
- 81比2比根號5的直角三角形,其他兩個角是多少度?
- 996-3.56-6.44 （簡便計算）
- 10翻譯The disease affected his mind so that he lost his memory.
- 11Cu與石墨做電極,HCl做電解質(zhì),能形成原電池嗎
- 12X1,X2是方程x^2-(2m-1)x+(m^2+2m-4)=0的兩個實(shí)數(shù)根,求x1^2+x2^2的最小值