单选题It is impossible for parents to______their children from every danger.
单选题An investigation that is unguided can occasionally yield new facts, even notable ones,
and the typical appearance of such facts
is the result of a search in a definite direction.
单选题Fifty-three thousand shouting enthusiasts filled the stadium; they had come to watch the first game of the season and to cheer the home team. A．enthusiasts filled the stadium to come B．enthusiasts, filling the stadium, had come C．enthusiasts filled the stadium; and had come D．enthusiasts filling the stadium, who had come
单选题In the U.S. Congress, the House of Representatives and the Senate are ______.
单选题The politician
decried
the platform of his opponent.
单选题The mother says that her daughter would be frightened to death if the door of the house is left opened. A. is left open B. were left opened C. was left open D. was to be opened
单选题The water prize is an international award that ______ outstanding contributions towards solving global water problem.
单选题These samples have to be ______ in certain kind of chemical water in order to protect them. A. immersed B. crisped C. armored D. arrayed
单选题{{U}}Subterranean{{/U}} streams have cut through limestone to form miles
of passages and caves, such as Kentucky's Mammoth Cave.
A. Secondary
B. Underground
C. Polluted
D. Miniscule
单选题Many young people believe that war is stupid and unnecessary. To them, to lose one's life on the battlefield is ______ .
单选题The manager is calling on a ______ customer trying to talk him into signing the contract.
单选题{{U}}Because our work is very busy{{/U}}, so we need to relax at midday.
单选题Uncle Vernon, quite unlike Harry Potter who looked nothing like the rest of the family, was large, very fat, and______, with an enormous black mustache.
单选题According to some scientists, human beings do possess some super-natural power. A. numerous B. numinous C. luciferous D. ludicrous
单选题While it is essential that the text covers the subject adequately, it is also important that it is neither too detailed or too complex for the intended reader. A. for B. nor C. no D. not
单选题He became aware that he had lost his audience since he had not been able to talk ______ around one topic. A. coherently B. initiatively C. flexibly D. pointedly
单选题They found that an individual tends to conform to a ______ group judgment even when that judgment is obviously in error. A. unanimous B. singular C. coherent D. versatile
单选题Although there are several variations on the exact format that worksheets can take, they are all similar in their ______ aspects. A. potential B. social C. essential D. partial
单选题The leaders of the two countries are planning their summit meeting with a pledge to maintain and develop good ties. A. strategy B. standpoint C. priority D. promise
单选题He must have been very hard to please, indeed, if he did not approve the salary of he job. A. if he had not approved B. if he is not approved of C. if he not approves D. if he had not approved of