parents'----their children is very important ,so parents sho

parents'----their children is very important ,so parents should eat---
a;influence to;health
b;influence to;healthy
c;influence on;healthy
d;influence on;heathily
这道题选d,为什么influence to和influence on有什么区别,healthy,health和heathily有什么区别
half of the students---made the some mistake
a;has b;have c;is d;are
这道体选b,为什么不能选d呢,student不是复数么.
they're spending a month---an englian coures
a;to do b;do c;doing d;does
这道题选c,为什么要用-ing形式呢.
you look---because the cakes that you cooked yesterday taste---
a;happily well
b;happily good
c;happy well
d;happy good
这道题选d,happily和happy有什么区别,又在什么情况下用 good和well呢
the house,along with a car---sold for 2000
a;was
b;were
c;have
d;has
这道题选a这道题有2个东西.为什么还用was
---three more days enough for the work to be finished
a;is b;are c;was d;were
这道题选a,为什么?