－When shall we set off?－We ____ start off at five o’clock if it ___ raining by then

you beento the Great Wall—Perhaps notin my memory. ________, it might have been during my early childhood.

you got the results of the final exam— Not yet It will be a few days _________ we knowthe full results,

Most students think this book is useful as it _______ all the basic grammar rules they need to know.

“Could you do me a favour and take thebox up to the six floor” “_______”