--Who______ it be that is knocking at the door?
--It ______ be Father, but I’m not sure.
| A．can; may | B．can; must |
| C．must; can | D．may; must |
In his speech，he said that it was his primary school teachers that he was fond of________influenced his whole life.
| A．what | B．which |
| C．as | D．who |
You________get an allexpensepaid vacation to Australia if you can answer all the questions.
| A．must | B．can |
| C．shall | D．may |
Jack________the test for further study in the USA.Let’s have a party to congratulate him.
A．passes B．has passed
C．has been passing D．had passed
The plan put forward at the meeting is________perfect；there’s still much room to improve.
| A．close to | B．next to |
| C．far from | D．out of |
Mary felt________from the outside world，since she lacked an Internet connection and couldn’t receive any email.
| A．cut down | B．cut in |
| C．cut off | D．cut out |