1.   Also, most of these systems have not been tested to ensure they can destroy the anthrax bacterium.

2.   But some consumer groups want the federal government to do more testing to ensure that these products are safe.

3.   He said they rented most of the equipment they tested to ensure that it was what most common users would have on their desktops.

4.   That worries lab officials, who say U.S. nuclear bombs may deteriorate over time and must be tested to ensure they still work.

5.   The Bush administration came to its senses last week on the issue of whether drugs should be tested to ensure that they are safe and effective for children.

6.   A firefighter who collected the powder, though dressed in chemical protection suit, was decontaminated then taken to an area hospital to be tested to ensure no contamination.

7.   Doctors said Blanco must still be tested to ensure he can donate his kidney, but they are optimistic.

8.   --Elementary school teachers must be tested to ensure they know how to teach reading.

9.   Through August all animals and animal products for export will have to be individually tested to ensure they are dioxin free.

10.   When the first sample tests positive, the second sample is tested to ensure accuracy.

v. + ensure >>共 276
work 11.00%
do 7.43%
can 5.36%
use 3.03%
act 2.34%
monitor 2.34%
check 1.65%
deploy 1.65%
intervene 1.38%
test 1.38%
test + v. >>共 109
see 16.51%
determine 13.76%
make 5.20%
use 5.20%
be 4.59%
ensure 3.06%
prove 2.14%
confirm 1.83%
do 1.53%
begin 1.53%
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