口算下面各题,看看用了多长时间. 30+7=45-5=30+40=80-30=40+24=53-20=25+3=36-5=58+9=62-8=8+62=90-7= 答案:【1】37【2】40【3】70【4】50【5】64【6】33【7】28【8】31【9】67【10】54【11】70【12】8324、After a day’s hard work, I
went back home ________.
A.exhausting
B.exhausted
C.being
exhausted D.having exhausted