It’s raining now, ______ you must take the raincoat with you.
A. for
B. so
C. or
D. because
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______ you work harder, you’ll do better in your subjects.
A. If
Before
C. Already
D. Whether
______ I was ill yesterday, I didn’t come to school.
A. For
B. As
C. Because
D. Since
The old man was ______ pleased ______ he could not say a word.
A. either…or
B. neither…nor
C. not only…but also
D. so…that
Which is bigger, the sun ______ the earth?
A. but
B. or
C. and
D. nor