His mother doesn't like to throw away old things _______they are useless．（ ）
| A． |
but |
B． |
because |
C． |
even if |
D． |
so that |
I think I am the shyest in my class． What should I do？
Be more active in class _______ you can improve your ability to express yourself．（ ）
A．so thatB．unlessC．orD．although
Mum， must I be a teacher like you when I grow up？
No， you needn't． You can make your own ．（ ）
A．differenceB．discussionC．discoveryD．decision
I think washing hands every day is good our health．
Yes， I agree you．（ ）
A．to；toB．with； toC．for；withD．at； with
Could you tell me why you learn English so well？
It's very simple， you study， grades you will get．（ ）
A．The harder； better
B．The harder； the better
C．Harder； better
D．Harder； the better
It's very important for us to keep ．
You are right．We should learn how to protect ourselves when we're in trouble．（ ）
A．rapidB．safeC．luckyD．social