– Amazing! You _____ have won the first prize in the national English speech contest!
– I’m lucky that all my efforts have finally paid off.
A. must B. may C. can D. should
A qualified doctor has to constantly update his knowledge in order to maintain his professional _____.
A. conscience B. competence C. conservation D. convenience
We all consider _____ significant that we should cancel the order immediately.
A. how B. which C. this D. it
_____, everyone present was amused by his adventure story in Africa.
A. Absurd as might it sound B. As it might sound absurd
C. As absurd it might sound D. Absurd as it might sound
_____ they are fit, I see no reason why they shouldn't go on playing basketball for another four or five years.
A. In case B. Provided that C. Unless D. As if
It was not until dark ______ he found ______ he thought was the correct way to solve the problem.
A. that; what B. that; that C. when; what D. when; that
