You          drive your car so fast. It’s dangerous.

It's the library! So you_______ make any noise here.

----May we leave the classroom now?----No, you         . You           to leave until the bell rings.

— Do you know where Miss Gao is? I couldn’t find her anywhere.— She ________ have gone far, for her coat is still here.

–Carla _______ go to that historical museum after school when she was a teenager. --No wonder she is so familiar with it.