This event was rather unusual, ________?
| A．is it | B．isn’t it | C．was it | D．wasn’t it |
The reason why he was late is ______ he got up too late.
| A．that | B．because | C．as | D．for |
While crossing the street, please ________ for the coming cars.
| A．watch out | B．take care | C．watch over | D．be careful |
_______ his foot wounded so seriously, he had to give up this basketball game.
| A．For | B．When | C．With | D．While |
The company was named Gates Hall ______ a man named James Gates.
| A．in need of | B．in search of | C．with the help of | D．in memory of |
I have no idea _______ they will pass the final exam.
| A．that | B．when | C．why | D．whether |