120除以20得______;490里面有______个70.
(1)120÷20=6;
(2)490÷70=7.
故答案为:6,7.
—Do you know the boy under the tree?
—Yes, I know. He is creative and imaginative, but he is a little lazy ______. [ ]
A. once a time
B. at a time
C. at times
D. at time
心理发展