It’s the sort of work that          a high level of concentration. 
#81307
A
calls for
B
makes up
C
lies in
D
stands for
推荐题目
Living in the country,Peter doesn’t  write often,but we do hear from him________.
#67455
A
now and then
B
sooner or later
C
at the same time
D
more or less
If you make every effort, your dream will ____, and this ____ all the people.
#64401
A
be come true; is true to
B
come true; is true of
C
realize; is true for
D
be realized; is true to
The North Pole is ____ all the white snow here and there all the year round.
#80856
A
full of
B
fill with
C
covered by
D
covered with