在旅游产品生命周期的()应多采取大力度广告策略。
A.投入期
B.成长期
C.成熟期
D.衰退期
参考答案:A
_______ in a classic detective novel, the landlord didn’t notice a thief was creeping up to his bedroom.
A.Buried
B.To be buried
C.Burying
D.Having buried
Mother told Jim to watch the milk until it boiled and then _____ off the gas.
A.turn
B.turning
C.turned
D.having turned