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1 次の各英文で,空所に入れるのに最も適切なものを,それぞれ下の①~④のうちから一つずつ選びなさい。
(1) It is true that training helps improve performance, ( ) there must be some limit to how fast a
person can run.
1 as
(
SO
③ but
because
) we didn't arrive on time, we were not allowed to enter the lecture hall.
①Because
Although (3) Therefore
However
(3) Sunlight produces vitamin D in our bodies, which is necessary for good health. ( ), doctors tell
us that spending too much time in the sun can result in skin cancer.
①Because
2 Thus
3 Suppose
④However
(4) People have been using white vinegar as a natural alternative to chemical treatments, ( A ) it can
lower blood sugar, kill bacteria, and help treat insect bites. ( B ), these benefits might come with
some risk. Vinegar's acid can also damage your stomach, throat, and teeth.
①A: since
B: Therefore
3 A: though B: However
2 A though
4 A: since
B: Therefore
B: However
(5) We were planning to travel abroad this summer, ( A ) we ended up staying home ( B ) we were
both too busy.
A while
B: so
2 A: but
B: because
(3)
A: so
B: though
4
A: since
B: but
