ettyWould you like to go to see a movie with me tonight—Sorry, Mary_________ tomorrow’s lessons, I have no time to go out with you

I failed again in the examination and only then_______how much time I had wasted.

I’m told that languagepractising．com is a free website _______learners can not just learn various languages but also chat online．

The price system is a complex network composed ofthe prices of all the products bought and sold in the economy as well as ofa great number of services

I hate to say it, _______ your car hasblocked the way.— I’m sorry .I’m about to leave.