Language Doctor will give us ________ advice this Sunday morning．
A．an B．a C．some
Mudanjiang government is going to plant ___ trees around the city to make it greener and more beautiful.
A.thousand B.thousands of C.three thousand of
Sun Nan got tons of ____ as soon as he announced that he would stop competing during I Am a singer.
A.joy B.pressure C.attention
--More and more students wear glasses in our school these days.
--I agree with you. Students ___ keep on doing eye exercises to protect their eyes.
A.should B.mightC.shall
--Why do you want to be a teacher, David?
--Because I like children and I can feel happy ___ them.
A.in B.between C.among
--Eric, is this your umbrella?
--No, it's not ____. It's Tom's.
A.my B.mine C.his