提问1、The supermarkets appealed to many customers ,

提问1、The supermarkets appealed to many customers ,
_____ are young mothers.为什么选 mainly of whom不选main of whow啊?
2、The doctor ______ explained what the treatment would be like .为什么选in charge不选in the charge.3、As____ ,they were waiting for us at the airport .为什么选 planned4、I send you 100 dollars today ,the rest _____ in a year .为什么选 to follow 不选followed 5、Was it in the cinema _____ you saw the film ____ Smith met you 为什么选 where ,that不选where,where6、My money ____ I must go to the bank to drawsome of my savings out before I,ve none in hand .
为什么选is running out不选has run out7、It is not rare in _____ that people in ______ fifties are going to university for further education .为什么选the 90s ,their 不选 90s,their