单项选择题
A.made B.makes C.making D.make
Take the time to（）the validity of an offer.A.check outB...
单项选择题Take the time to（）the validity of an offer.
A.check out B.look out C.make out D.pick out
All offers（）require payment or private information befo...
单项选择题All offers（）require payment or private information before giving an award are bogus.
A.what B.who C.whose D.that
Internet（）theft is a growing—and very costly—problem.A....
单项选择题Internet（）theft is a growing—and very costly—problem.
A.identify B.identity C.identical D.identification
