问题
选择题
Don’t bother Tom, he is ______ with the experiment on water molecules in the lab.
A．focused
B．fixed
C．occupied
D．concentrated
答案
答案：C
题目分析：查固定词组。Be occupied with…忙于…句意：不要去麻烦Tom。，他正忙于在实验室里做实验。根据句意说明C正确。
点评：be occupied with…忙于….该词组与be busy doing sth忙于做sth