The brain works much more efficiently when __. A.both sides of the brain are used equally
请在第_______处填上正确答案。 A.country B.society C.agreement D.days
"If it fails, I'll buy you a new one" suggested that __. A.he was quite sure of success B.he was not sure he would get the umbrella back C.he was rich enough to afford a new umbrella D.he did not know what to do
It's natural that she __ do so. A.should B.will C.could D.must