[单项选择]It is doubtful whether anyone can be a truly （　） observer of events.
A. inadequate
B. impassive
C. genius
D. impartial

[单项选择]It is doubtful whether anyone can be a truly______observer of events.
A. inadequate
B. impassive
C. genius
D. impartial

[单项选择]Anyone can give examples of dreadful damages done by this industry, which is apparently develop with the expense of the environment.（）
A. which apparently developing at the expense of
B. which apparently develop in the expense of
C. which is apparently developing at the expense of
D. which is apparently developing in the expense of

[多项选择]Anyone can answer such a question as this one, ______

[单项选择]Can Digital Textbooks Truly Replace the Print Kind The shortcomings of traditional print edition textbooks are obvious: For starters they’re heavy, with the average physics textbook weighing 3.6 pounds. They’re also expensive, especially when you factor in the average college student’s limited budget, typically costing hundreds of dollars every semester. But the worst part is that print versions of textbooks are constantly undergoing revisions. Many professors require that their students use only the latest versions in the classroom, essentially rendering older texts unusable. For students, it means they’re basically stuck with a four pound paperweight that they can’t sell back. Which is why digital textbooks, if they live up to their promise, could help ease many of these shortcomings. But till now, they’ve been something like a mirage(幻影) in the distance, more like a hazy(模糊的) dream than an actual reality. Imagine the promise: Carrying all your textbooks in a 1.3 pound iPad It s
A. they are not reused once a new edition comes out
B. they cost hundreds of dollars every semester
C. they are too heavy to carry around
D. they take a longer time to revise

[单项选择]Anyone can borrow books from the library ______ he has a library card.
A. since
B. so long as
C. even though
D. unless

[单项选择]Anyone can get into the club, （）he is a member there.
A. even if
B. unless
C. as that
D. so long as

[单项选择]If we truly believe we can win, then we have a very good chance at doing it．
A. 如果我们真的相信我们能取胜，那么我们就有很好的机会做这件事。
B. 如果我们确实相信我们能取胜，那么我们就很有把握做这件事。
C. 如果我们确实认为我们能赢，那么我们做这件事就靠机会了。
D. 如果我们真的认为我们能取胜，做这件事就是很好的机会。

[单项选择]Anyone who wants to can call any timepiece a clock, but technically speaking, only ______ one rings out the time actually deserves the name.
A. whichever
B. whatever
C. whenever
D. wherever