-- Do you think it's a good idea to make friends with your students?
--______, I do. I think it's a great idea.
| A．Really | B．Obviously |
| C．Actually | D．Generally |
—I called you many times yesterday morning, but I couldn’t get through.
—Oh. My brother ______on the phone all the time!
| A．was talking | B．has been talking | C．has talked | D．talked |
—Would you mind if I closed the window?
—______. It’s that cold outside.
| A．Sorry, I’m afraid | B．Yes, help yourself |
| C．Sorry, you don’t | D．No, go ahead |
A few days after the interview, I received a letter_________me admission to the university.
| A．offering | B．offered | C．having offered | D．to be offered |
— Hi, Johnson, any idea where Susan is ?
— It’s class time, so she________in the classroom now.
| A．can be | B．must have been | C．might have been | D．must be |
Low-carbon lifestyle is of great benefit to improve the world environment．________can be enjoyed from it until you have a deep understanding of it, however．
| A．Something | B．Nothing | C．Few | D．Much |