They have been waiting for many hours to see the singer, but the airplane must have been _____.
| A．behind the times | B．behind schedule | C．ahead of time | D．in no time |
Video games can be a poor influence if ________ in the wrong hands.
| A．to leave | B．leaving | C．leave | D．left |
Only after talking to two studentsthat having strong motivation is one of the biggest factors in reaching goals.
| A． | I did discover | B． | did I discover |
| C． | I discovered | D． | discovered |
As you go through this book, you ________ that each of the millions of people who lived through World War II had a different experience.
| A．will find | B．found |
| C．had found | D．have found |
It was when we were returning home ________ I realized what a good feeling it was to have helped someone in trouble.
| A．which | B．that | C．where | D．how |
This meeting room is a non-smoking area. I would like to warn you _____ that if you smoked here you would be fined.
| A．in advance | B．in detail |
| C．in total | D．in general |