I think there will be _____ people and ______pollution.
A. less, fewer B. less, more C. fewer, less D. fewer, fewer
It may take _________ years to make such robots .
A. hundred of B. two hundreds C. hundreds of D. hundred
When he grows up,he’s going to do .
A. what he wants to do B. what does he want to do
C. what he want to do D. what will he want to do
I my resolutions and I make sure I will keep them.
A. am sure, try my best B. sure about, try my best to
C. am sure about, try my best D. am sure about, try my best to