Britain announced tighter security measures this week, with plans ______ full-body scanners at Heathrow airport within three weeks.
A.to use | B.to be using | C.being used | D.having used |
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Britain announced tighter security measures this week, with plans ______ full-body scanners at Heathrow airport within three weeks.
A.to use | B.to be using | C.being used | D.having used |