She ________ speak English then. But now she _______ speak. A. couldn’t, can B. could, can C. can’t, could
---- The chair is _________. Can you repair it? ---- Let me try.
---- Can you ________ these exercise-books to the teacher’s office, please. ---- Sure.
Hi, John. ___________ write on the wall. __________ the wall clean.
______________ eat too much candy. It’s bad ___________ your teeth.
情景搭配.