A survey of the opinions of experts that three hours of outdoor exercise a week good for our health．（ ）
| A． |
show； are |
B． |
shows； is |
C． |
show； is |
D． |
shows； are |
Let's divide the rubbish into different kinds before throwing it away．
OK． It's _____us to use some of it again．（ ）
A．thankful toB．good for
C．similar toD．painful for
What's your brother's_____？
It's about 1.75 meters． He's the tallest in his class．（ ）
A．ageB．addressC．weightD．height
Wang Lin did_____in the final exam this term again．
That's not strange． He always gets full marks in all of his subjects．（ ）
A．worstB．worseC．bestD．better
Maybe I can't pass the English test this time， Mum．
Don't worry． Believe in_____．（ ）
A．itB．usC．yourselfD．yours
It's said that Zhou Jielun will hold a concert next month in Xiangyang．
I'm sure the fans will be happy_____it's true．（ ）
A．untilB．althoughC．beforeD．if