—Jack, this is the third time that you have been late this week.
—Sorry, sir, but I was ____ for 15 minutes on the way here in the traffic jam.
| A．held up | B．put up | C．taken up | D．given up |
-- In the countryside you can enjoy fresh air, blue sky and quiet surroundings.
--- _______ more and more retired people are escaping from the crowded city.
| A．It is no wonder | B．It is no doubt |
| C．There is no need | D．There is no possibility |
— Remember the first time we met, Jim?
— Of course I do. You _______ in the library.
| A．were reading | B．had read | C．have read | D．read |
I always prefer _______ a bike rather than _______ to work.
| A．riding, drive | B．to ride, drive |
| C．ride, driving | D．to ride, driving |
When you read the book, you’d better make a mark _____ you have any questions.
| A．at which | B．at where | C．the place | D．where |
AIDS is said _______ the biggest health challenge to both men and women in that area over the past few years.
| A．that it is | B．to be | C．that it has been | D．to have been |