Not until I began to work ________ how much time I had wasted.

Our teachers often suggest we ______ take it easy when facing any difficulty.

children get older, Doherty said, their brainsmay develop the ability to indentify visual context

It was a heavy snow last night. Are we all here now— Yes, and _____ of us was late for school.

will Taixing in ten years — It will be much cleaner and more beautiful, I’m sure.