______ he wants to say is ______ great an effort he has made to help her out.
A．That; how B．What; what C．What; how D．What; that
______ I failed in English a third time, I had no doubt about my gift for foreign languages.
A．By the time B．Until C．After D．Unless
— Jack, this is the third time that you have been late this week.
— Sorry, sir, but I was ______ for 15 minutes on the way here in the traffic jam.
A．held up B．put up C．taken up D．given up
The driver tried everything he could think of, but the car just ______ not move.
A．should B．might C．must D．would
Knowledge and learning are important if we want to be successful, but they may also ______ our thinking.
A．direct B．limit C．change D．improve
— Would you mind giving your advice on how to improve our business management?
— If you make ______ most of the modern equipment, there will be ______ rise in production.
A．/; / B．the; a C．/; a D．the; /
