21.   It is best done at this stage to avoid unnecessary disturbance later on.

22.   Lucy is quite clever and does well at school.

23.   Managing nicely seemed an odd thing to do at the north end of the Reach.

24.   Mineral exploration and leisure development were to be the cover story and they would do at a casual glance.

25.   Months of testing still lie ahead, with work being done at laboratories across the country.

26.   Most listed companies do not at present use their non-executives in the precise ways Cadbury recommends.

27.   Most of his tutors expected him to do well at Harvard.

28.   Of course, what Dooley did at the water fountain was only half the story!

29.   Primary school children know more today than we did at that age.

v. + at >>共 990
speak 2.35%
hold 2.19%
be 2.14%
say 1.77%
stay 1.61%
meet 1.58%
stop 1.50%
appear 1.42%
remain 1.34%
sit 1.33%
do 1.15%
do + p. >>共 108
in 37.04%
on 13.20%
at 8.23%
about 7.74%
by 3.45%
as 3.43%
before 3.41%
after 2.31%
during 2.29%
against 2.12%
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