Scientists are convinced ______ the positive effect of laughter ______ physical and mental health.
| A．of; at | B．by; in | C．of; on | D．on; at |
---WillsomebodygoandgetDr.White?
---He’salreadybeen___________.
| A．askedfor | B．sentfor | C．calledfor | D．lookedfor |
SomeofthestudentshadlearnedenoughEnglishto_________aconversationwithanativespeakerofEnglish.
| A．goon | B．carryon | C．keepon | D．takeon |
Itwasgettingdark.Wedecidedto________forthenightatafarmhouse.
| A．putup | B．putaway | C．putdown | D．puton |
HowIwishIcould________myideasinsimpleandwonderfulEnglishchattingontheInternet.
| A．setoff | B．setout | C．setover | D．setup |
Thephotographerneedstochargeupthedigitalcameraeverydayasthebattery________quickly.
| A．shutsup | B．endsup | C．runsout | D．turnsout |