---Is Jack on duty today?
---It ________ be him. It's his turn tomorrow.
| A．mustn't | B．won't | C．can't | D．needn't |
I’m examining the composition he has just finished______the possible mistakes in it.
| A．correcting | B．to correct | C．corrected | D．correct |
You can’t guess ______ when he was admitted by Beijing University.
| A．how he was happy | B．how happy was he |
| C．how happy he was | D．he was how happy |
As teachers, we feel______our duty to teach our children to be good wherever we are.
| A．this | B．that | C．it | D．there is |
— Each of the students, working hard at their lessons, ______the book. — So have I.
| A．is reading | B．has read | C．reading | D．reads |
After______for the job, you will be required to take a language test.
| A．being interviewed | B．interviewed | C．interviewing | D．having interviewed |