Robert is said abroad, but I don’t know in which country he is.
| A．have been studying | B．to have been studying | C．have studied | D．to have studied |
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 |
The two presidents agree with each other on the whole, but much remains______at the following meeting.
| A．discussing | B．discussed | C．to discuss | D．to be discussed |