Theboyboughtanewdictionary__________heturnedforhelp.
A、fromwhichYoushouldtrytowrite__________evenwhenyou’rebusy.Asyouknow,practicemakesperfect.
At this moment the bell rang, ________ the end of class.
Mary ’ s pronunciation is much better than __________ in her class.
His backache is only _________ for not watering the flowers.
It's seven thirty. I_________ go to school.
