Many people like white as a color as it is a _____ of purity.
| A．symbol | B．sign | C．signal | D．symptom |
. I always take something to read when I go to the doctor’s _____ I have to wait.
| A．in case | B．so that | C．in order | D．as if |
---Keep me informed ______ the latest news.
--- Ok.
| A．by | B．at | C．for | D．of |
I’m looking forward to ______ you.
| A．hear from | B．receive a letter from |
| C．hearing from | D．getting from |
Do you know the man _____ son is studying in Oxford University?
| A．who | B．whom | C．that | D．whose |
I’ll never forget the days _____ we spent on the small island.
| A．when | B．then | C．on which | D．that |