Lawrence Craven, a doctor from the USA, is the author of several published reports, one of _____ introduced the idea in 1953 _____ aspirin could reduce the risk of heart attacks.
| A．them; when | B．which; that | C．what; that | D．which; when |
It was the boy said he almost never did any exercise in the school the mother began to worry about his health.
| A．what; that | B．that; how | C．when; that | D．that; that |
It was_______computer games that cost the boy lot of time that he ought to have spent on his lessons.
| A．to have played | B．playing | C．played | D．having played |
--- I know how much it will take you to buy a ticket for sporting events of the 2008 Olympic Games.
--- How did you know it?
--- It was in the website www. tickets. Beijing 2008.cn you can buy the tickets for the opening ceremony for the Beijing 2008 Olympic Games on August 8 I found the full details about tickets prices for them.
A
．where; that B．which; that C．that; which D．where; which
—Were you caught in the rain yesterday?
—Good luck. No sooner home than it poured down.
| A．I had reached | B．had I reached | C．did I reach | D．I have reached |
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