问题

The scientist knows nothing about the matter, because he is always ______ himself in scientific study.
A:burying
B:devoting
C:focusing
D:concentrating;
B:devoting
C:focusing
D:concentrating;
正确答案是:
同类题型
In addition to what ________ above, his speech was also involved in some big issues of our society
I wonder why Ann didn’t get _______ the job.She is the right person for it.
I’m sorry I made your book wet when I had water.–
We are said to be living in______ Information Age, ______ time of new discoveries and great changes.
Let’s go to the church tomorrow, shall we—Why not _______ there on Sunday