Joe Jim may go with you because one of them must clean the room at home.
| A．Not; but | B．All; or | C．From; to | D．Either; or |
--- I want to know if I _________ smoke here.
--- No， you ___________. Can’t you see the sign “NO SMOKING” there?
| A．shall； won’t | B．may； mustn’t |
| C．can； needn’t | D．must； can’t |
--- Hi， Ann. How can you improve your English so much?
--- Oh， nothing difficult. The _____ you work at it， the _____ progress you will make.
| A．harder； more | B．more hardly； more |
| C．hardlier ； greater | D．harder； great |
--- Did Jack come back early last night?
--- Yes. It was not yet eight o’clock ______ he arrived home.
| A． before | B．when | C．that | D．until |
---Why are you so happy?
--- ______ the teacher’s help， I found the answer ______ the question.
| A． Under； to | B．With； to |
| C．Under； of | D．With； of |
--- What he enjoys _________ great and interesting.
--- Yes， but it’s dangerous.
| A．sounds | B．sounding |
| C．sounded | D．is sounded |