改错At that time the sick boy laid in bed all day long.

改错That is very difficult to study two foreign languages at the same time改错 That is very difficult to study two foreign languages at the same time What's the time?It's at half past nine.改错 改错At that time the sick boy laid in bed all day long. at the time when/that They were at the zoo at the first time 改错 英语改错 “It's the first time that he lost a game” at that time和at the time的区别? at that time 和 at the time的区别? the baby kept crying （）what‘s wrong A at that time B the same time C all the time D at times 改错,the bank is close at this time of day 改错The shop is closing at this time of day. Kate is playing the violin at this time yesterday.改错 That was difficult to build that railroad at that time.单句改错 At that time forgot is the corner 改错：Look at that!It's an UFO. 改错:Let's me have a look at that purse. at the time=at this time=at that time 对不对? at the time、at that time与at this time的语用含义