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【单选题】
Having taken our seats, ____A.
the professor began the lecture
B.
the lecture began in no time
C.
we were attracted by the lecturer immediately
D.
the bell announced the beginning of the lecture
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举一反三
【单选题】You will fail the test ______ you work hard. So work hard from now on! [ ]
A.
if
B.
as soon as
C.
unless
D.
even though
【单选题】Do you think the problem is ______? If you think hard, you'll find it ______ to work out. [ ]
A.
hard; easy
B.
easy; hard
C.
hardly; easily
D.
hard; easily
【简答题】A good way to pass an exam is to work hard every day in a year. You may fail in an exam if you are lazy for most of the year and then work hard only a few days before the exam. If you want to be good ...