1.Do you often help your mother ____ the homework?(B.)
A.to B.with C.for D.of
原因：本题想考的是：help sb to do sth ,to do后面加动词,和help sb whit sth.with后面加名 词.由于homework是名词所以选B.
2.I have a pian ____ my syomach.（A.）
A.in B.with C.to D.for
原因：根据句型：be pain in ,所以选A.
3.____ to get good grades.(A.)
A.Study hard B.Studying hard C.To study hard D.Studied hard
原因：此句为祈使句,祈使句没有主语,主语用动词原形.所以选A
4.There are many ____ students ____ football.(B.)
A.another;playing B.other;playing C.the other；play D.else;play
原因：another意思是三者当中的另一个；other是其它；the other 是两者中的另一个；else是其他
很显然,除了other符合之外,其它都不行,所以第一个空填other,则第二个空填playing .
5.My grandma didn't go to sleep ____ i got back home.(B.)
A.where B.until C.as soon as D.while
原因：根据句型 not until 直到...才...,所以选B.
先打5个,让我休息下,喝口水.