It was playing computer games that cost the boy a lot of time that he __________ doing his lessons.
| A．might have spent | B．ought to have spent |
C．must have spent | D．could have spent |
Safety in school has be
en of great concern because of frequent reports about accidents _______ students got injured or killed while in school．
| A．in which | B．when |
| C．that | D．for which |
In order to continue to learn by ourselves after leaving school, we must______ learn how to study in the school now．
A．after all B
．in all C．above all D．at all
---- How long will it be ______ we know the result of the English examination?
----- Perhaps in two or three days．
| A．since | B．before | C．until | D．that |
------ Bob failed in the exam again ．
------ He _____ it ; he never worked hard ．
| A．deserved | B．succeeded | C．missed | D．considered |
The driver was at ___ loss when _____ word came that he was forbidden to drive for speeding．
| A．a; the | B．/; / | C．the; the | D．a; / |