问题

It’s good _____ old people to cross the road.
A:help
B:helps
C:to help
D:helping;
B:helps
C:to help
D:helping;
正确答案是:
同类题型
The book ______ for adults is not suitable for teenagers to read.(西城区)
Many students believe the choice of their courses and universities should____ __ their own interest.
What _______ honest boy! And he is ________best student of all.
We hope that as many people as possible joinus for the picnic tomorrow.