My father ( )his business successfully.
A.experimented
B.conducted
C.hosted
D.manufactured

单项选择题Some people want to go hunting,( )others want to go fishing.A.orB.becauseC.whileD.since

单项选择题I usually watch television in the evening ( ) I have to study for an examination.A.unlessB.ifC.whileD.when

单项选择题There were so many people that police found it very hard to bring the situation( )control.A.AtB.underC.withD.on

单项选择题The teacher takes the students ( ) there is something interesting to see.A.thatB.wheneverC.whereverD.in which

单项选择题When she completed an additional work report and thoroughly researched her sources，Gina’s boss appreciated that she’d gone beyond the （）。

A.thesis statement
B.satisfaction
C.status quo
D.stockholder