The pianist waited for silence a while _______ he began to play the violin.
| A．until | B．when |
| C．after | D．before |
It is generally considered unwise to give a child _____he or she wants.
| A．however | B．whatever | C．whichever | D．whenever |
They had to move away _________ there might be another earthquake.
| A．no wonder that | B．no doubt that | C．in case that | D．for fear that |
The song is about a couple forced to separate _________, but they valued the memories of their love all their lives.
| A．casually | B．permanently | C．temporarily | D．frequently |
. The ________ flight CA9525 for 11:30 a.m. is to be put off because of the stormy weather.
| A．formal | B．regular | C．ordinary | D．common |
. Being able to speak another language well is a great _______ when you are looking for a job.
| A．assistant | B．importance | C．advantage | D．chance |