To make it more convenient for people to visit Taiwan, several _____air services fromthe mainland have come into use.
| A．reliable | B．permanent |
| C．regular | D．constant |
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 |
She knew nothing about his journey _______ he was likely to be away for three months.
| A．Except | B．except for |
| C．except that | D．in addition |
“How did the robber get in?” “______ an open window on the first floor.”
| A．Past | B．From |
| C．Over | D．Through |
_______ reading the letter, what has he done?
| A．Because of | B．Except |
| C．Besides | D．But for |