[单项选择]Hard ______ they had tried, their first attempt at a solution was unsuccessful.
A. as
B. like
C. so
D. such

[填空题]I tried as hard as I could to keep my promise to them. best I ____________________ break my promise to them.

[简答题]I tried very hard, but I failed in finding a job.
______, I failed in finding a job.

[填空题]He tried hard to avoid（）(meet) that man.

[单项选择]She tried hard, ______ she was unsuccessful.
A. therefore
B. but
C. or
D. unless

[填空题]______ have tried hard to persuade women not to marry.

[填空题]I tried hard to put across my idea to him but ___________ (我所有的努力均归于无效).

[单项选择]She tried hard, but still couldn’t make us ______ our mind.
[A] to change [B] change [C] turn [D] to turn

[单项选择]I tried hard, but I couldn’t find the ______ to the problem.
A. solution
B. help
C. reply
D. demand

[单项选择]A. Because they had had a hard time finding a parking lot.
B. Because the park was closed before they reached there.
C. Because they had jammed into a crowded parking lot there.
D. Because the park was crowded with too many people.

[填空题]No matter how hard I tried to explain how to operate the machine, they were still at a loss.
A．尽管我努力把机器开动了，他们还是觉得非常失望。
B．无论我怎么努力地说明机器的用法，他们都不理解我。
C．即使我努力地对机器做了解释，他们还是不相信我的话。
D．不管我怎么努力地解释如何操作这台机器，他们依然听不懂。

[单项选择]John had been working hard （）.
A. so his brother did
B. and so was his brother
C. so did his brother
D. and so had his brother

[单项选择]No sooner had she got home（　） she tried on her new coat.
A. that
B. than
C. before
D. when

[单项选择]A. Tom didn’t pass, although he had tried his best.
B. Tom just got a passing score.
C. Tom got an excellent score, which was unexpected.
D. Tom was disappointed at his math score.

[填空题]Mr. Parsons had worked very hard and experienced much suffering before he became a respectable insurance salesman.

[单项选择]The first time I tried shark-fin soup was at Time Warner’s annual dinner in Hong Kong. Shark-fin soup is a luxury item ($100 bowl in some restaurants)in Hong Kong and Mainland China, its biggest consumers; it’s a dish that embodies east Asia’s intertwined notions of hospitality and keeping (or losing) "face". "It’s like champagne", says Alvin Leung, owner of Bo Innovation, a Cantonese restaurant in Hong Kong. "You don’t open a bottle of Coke to celebrate. It’s a ritual. "
Unfortunately, this gesture of hospitality comes with a price tag much bigger than that $ 100 bowl. All told, up to 70 million sharks are killed annually for the trade, despite the fact that 30% of shark species are threatened with extinction. "Sharks have made it through multiple mass extinctions on our planet, " says Matt Rand, director of Pew’s Global Shark Conservation division. "Now many species are going to go the way of th
A. large creatures tend to extinct more quickly than smaller ones such as tuna
B. low breeding capability of shark is the vital reason for its endangerment
C. the measures taken to battle against finning are not so successful
D. westerners show no interest in shark-fin soup