________ many times, he finally understood it．
| A．Told | B．Telling | C．Having told | D．Having been told |
______we have enough evidence, we can’t win the case.
| A．Once | B．As long as | C．Unless | D．Since |
John invited about 40 people to his wedding, most of ______ are family members.
| A．them | B．that | C．which | D．whom |
It’s not easy to change habits, ______ with awareness and self-control, it is possible.
| A．for | B．or | C．but | D．so |
- Would you like a glass of wine?
-. I don't drink.
| A． | No, thanks | B． | Yes, please |
| C． | I don't like it | D． | It's my favorite |
I felt very tired when I got home, and Istraight to bed.
| A． | go | B． | went | C． | had gone | D． | have gone |