“It’s a long time since I enjoyed myself.” This sentence means______.

You can’t do _______ before you finish your homework.

_____, he together with his families ____ escaped from the shaking building when the earthquake struck Lushan County of Ya’an

Do you still remember__________he was taken to the hospital?—Yes，he was sent to the hospital in Mr Smith’s car.

______ in his book, he didn’t notice me when I entered the room.