首页
登录
职称英语
I( )on the door for ten minutes now without an answer.A、was knockingB、am knocki
I( )on the door for ten minutes now without an answer.A、was knockingB、am knocki
游客
2024-01-17
74
管理
问题
I( )on the door for ten minutes now without an answer.
选项
A、was knocking
B、am knocking
C、knocking
D、have been knocking
答案
D
解析
本题考查动词时态的用法。for ten minutes now作时间状语,动词应用完成时态。
转载请注明原文地址:https://tihaiku.com/zcyy/3371306.html
相关试题推荐
Forthispart,youareallowed30minutestowriteacompositiononthetopicA
Forthispart,youareallowed30minutestowriteacompositiononthetopicA
Forthispart,youareallowed30minutestowriteacomposition.Youshouldwri
______,theprogramwentthroughwithoutanyproblemduringtheperformance.A、To
Thankyouforgivingmeahand.I______intheexperimentwithoutyourvaluableh
Forthispart,youareallowed30minutestowriteacompositiononthetopic-.
______thereareonly20minutesleftbeforethetrainleft,Ifeltuneasyinthe
Forthispartyyouareallowed30minutestowriteacompositionofnolessthan
Forthispart,youareallowedthirtyminutestowriteacompositiononthetopi
Howcanhe______withoutmoneyforfoodduringthejourney?A、gettogetherB、geta
随机试题
WhatwasKevinSpaceybeforehebecamefamous?[br][originaltext]AnjaliRao:K
Wecanmakeupourmindsaboutsomepeoplewithinonlysevensecondsofmeeting
D1=4/4,5/4=10/8,则分子1、4、7、10、13、(16)构成公差为3的等差数列,分母2、4、6、8、10、 (12)构成公差为2的等差数列。
米炒时,一般用量为每100kg药材,用米A:5kgB:10kgC:15kg
消防车道一般按单行线考虑,为便于消防车顺利通过,消防车道的净宽度和净空高度均不应
梁的弯矩图如图示,最大值在B截面,在梁的A、B、C、D四个截面中,剪力为零的截面
大力提升机器人产品在()等方面的性能和智能化水平。A.传感、交互、控制
(2021年真题)地下砖基础可以用哪种材料:()A.蒸养砖 B.空心砖
悬臂安装采用水上吊船施工时,吊船停泊位置应在桥中线下游,必须具有可靠的()。A
施工单位在开工前应编制测量控制方案,经()批准后实施。A.项目技术负责人 B
最新回复
(
0
)