___he met with the difficulty did he realize the importance of our help.
| A．Even though | B．Only before | C．Never until | D．Ever since |
As it was almost time for the flight, all the passengers got ______ the plane.
| A．around | B．abroad |
| C．aboard | D．ahead |
He always did well at school ______ having to do part-time jobs every now and then.
| A．in spite of | B．instead of |
| C．in case of | D．in favor of |
______ the weather, we had a pleasant time.
| A．Except | B．Except for |
| C．But | D．Besides |
I found the island a wonderful place for our experiments _______ the hot weather.
| A．besides | B．except for |
| C．except | D．except that |
He usually goes to work by bike _______ it rains.
| A．except | B．except when |
| C．except for | D．except that |