单项选择题
A．so did you B．so you do C．so do you D．so you did
I was thirsty, for I () nothing all day. A．drank B．had ...
单项选择题I was thirsty, for I () nothing all day.
A．drank B．had drunk C．had been drinking D．have drunk
He () his examination if he worked harder. A．has passed...
单项选择题He () his examination if he worked harder.
A．has passed B．should have passed C．could have passed D．would have passed
