23. If you want to do the experiment again, you had better be more careful________ you made a mistake.
| A．when | B．why | C．where | D．That |
67. The Prime Minister was more fit __________ his office than anyone else.
| A．for | B．to | C．with | D．Of |
66. When the good news that our football team won the championship, the hall was at once _______ great joy.
| A．filled of | B．full with | C．filled with | D．fill with |
65. Two dogs ______ a bone, and a third runs away with it.
| A．fight back | B．fight with | C．fight against | D．fight for |
64. They hurried away _____ fear that should be caught in rain.
| A．in | B．for | C．at | D．On |
63. The plan for a new airport have been scrapped __________ an extension to the old one.
| A．in favour | B．out of favour | C．in favour of | D．Favourite |