【单选题】
“-ful” in the word “careful” is _______.
①
a free morpheme
②
a grammatical morpheme
③
an inflectional morpheme
④
a derivational morpheme
【简答题】
Direction: Fill in the blank with the correct form of the word given.2. One has to be especially careful under such[填空1](circumstance).
【单选题】
You must be careful when ___ on the highway.
①
you driving
②
are driving
③
driving
④
you were driving
【单选题】
You can’t be too careful while driving!
①
[A]开车要特别小心！
②
[B]开车不能太小心！
③
[C]你开车时不得不小心翼翼！
④
[D]你开车要小心，但切忌谨小慎微！
【单选题】
She _____ useful knowledge of the English by careful study.
①
acquired
②
gained
③
sacrificed
④
earned
【单选题】
7. With careful examination, they were convinced that the picture was______.
①
real
②
exact
③
true
④
genuine
【单选题】
This is a _____ moment for our research. We should be careful.
①
critical
②
belt
③
conscience
④
copper