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【单选题】
It seems that manufacturers will remain reluctant to make improvements unless______.A.
they can do so at a very low cost
B.
they find their machines hard to operate
C.
they have difficulty selling their products
D.
they receive a lot of complains about their machines
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举一反三
【单选题】The passage is mainly to ______.
A.
reveal that everything in Potter was imagined by Rowling
B.
tell the truth about Flamel behind the tales in Potter
C.
point out the inability of alchemists to defend themselves
D.
address that alchemy had an impact on modern science
【简答题】Rowling’s favorite writer of all time is ______.
【单选题】The experts along with the head teacher _____ discusssing JK Rowling’s works that _______ popular among students.
A.
are; are
B.
are; is
C.
is; are
D.
is; is
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