________ Yao Ming has retired from the NBA, the pleasure we have got by watching him play basketball at home and abroad will last long.
| A．While | B．When | C．As | D．Since |
—She looks very happy. She ______ have passed the exam.
—I guess so. It's not difficult after all.
| A．should | B．could | C．must | D．might |
So much of interest ________ that most visitors simply run out of time before seeing it all.
| A．offers Beijing | B．Beijing offers |
| C．does Beijing offer | D．Beijing does offer |
---I failed again, I wish I _________ harder. ---But you _______.
| A．worked; didn’t | B．had worked; didn’t |
| C．worked; don’t | D．had worked; hadn’t |
Today we have chat rooms, text messages and email, but we seem _______ the art of communicating face-to-face.
| A．losing | B．to be losing |
| C．to be lost | D．having lost |
______ along with host families, I believe, language travel students are likely to get enough language practice.
| A．Stay | B．Having stayed |
| C．Staying | D．To stay |