单项选择题
A.forwardB.towardsC.backD.against
I had nothing to add()my earlier statement.A.toB.upC.wi...
单项选择题I had nothing to add()my earlier statement.
A.toB.upC.withD.for
()has made smallpox a very rare disease.A.InfectionB.Tr...
单项选择题()has made smallpox a very rare disease.
A.InfectionB.TreatmentC.VaccinationD.Cure
This is a very ()occasion.It is not appropriate to wear...
单项选择题This is a very ()occasion.It is not appropriate to wear casual clothes.
A.messyB.franticC.formalD.jealous