.No matter how fast we worked,____.
| A．we couldn’t catch up with them | B．and we couldn’t catch up with them |
| C．so we couldn’t catch up with them | D．but we couldn’t catch up with them |
The 3G cell-phone must be of great use to ______ wants to get the information through the Internet quickly.
| A．who | B．whoever | C．whomever | D．whichever |
——How do you like the set of popular science books?
——Wonderful! It _____ many problems we are interested in exploring.
| A．refers | B．consults | C．covers | D．writes |
Was it in the train “ Harmony”, ______ is China’s first high-speed one, that John met with his foreign friend？
| A．which | B．that | C．what | D．where |
Watching the online open courses of some famous European and American universities _______a new fashion among white collars in China over the past few months.
| A．became | B．had become | C．has become | D．becomes |
Tom was to blame for the incident. But _______his positive attitude , we forgave him because “Every man has his faults.”.
| A．in spite of | B．in search of | C．in exchange for | D．in view of |