---Mary’s score on the test is the highest in her class.
---Really? She ______ have studied very hard.
| A．may | B．ought to | C．must | D．should |
There are hundreds of studentsin front of the school gate to welcome the scientist from America.
| A．waited | B．to wait | C．waiting | D．wait |
--- How are you getting along with your English study? Do you need my help?
---, but I think I can improve it by myself.
| A．No, thanks | B．That’s OK |
| C．You are helpful | D．That’s very kind of you |
--- Shall we go outing this weekend?
--- _____________. There will be a meeting maybe.
| A．It all depends. | B．You got it. | C．I can’t wait. | D．No problem. |
The rules of our school don’t allow ______ at school. That is to say, Nobody is allowed _____ here.
| A．to smoke; to | B．smoking; smoking |
| C．to smoke; smoking | D．smoking; to smoke |
There were two teachers named John ________at our school, which made some of our students _____.
| A．working; confused | B．worked; confusing |
| C．work; confused | D．to work; confusing |