She ________ on her work so much that she didn’t notice that a crowd of people had _______around her. 
#71694
A
focused; focused
B
fixed; gathered
C
concentrated; concentrated
D
carried; collected
推荐题目
Mary _______ with Jenny, and they are studying at the same middle school.
#72658
A
comes to terms
B
is on close terms
C
is on the good terms
D
makes terms
The computer was one of the greatest______ in the 20th century.
#81361
A
inventions
B
discoveries
C
findings
D
explorations
You should make  of the time at school or you’ll regret.
#80809
A
nothing
B
the most
C
much
D
everything