Rewrite the sentences according to the instructions in the brackets(按要求改写下列句子，每空一词）
【小题1】Tom usually gets to school at seven. （改为一般疑问句）
_________ Tom usually __________to school at seven?
【小题2】We usually take the underground to go to work. （改为同义句）
We usually go to work _________ __________.
【小题3】I spend one hour on my homework every day. （改为同义句）
It ___________ me one hour ____________ do my homework every day.
【小题4】My mother gave me a nice present on my birthday. （就画线部分提问）
__________ did your mother __________you on your birthday?
【小题5】It takes me ten minutes to go to school on foot. （就画线部分提问）
____________ ___________ does it take you to go to school on foot?
【小题6】There are about 12 million people in the city.（就画线部分提问）
___________ _____________ people are there in the city?