暑假作业大本有几倒英语题不懂!请大家帮忙解决一下,谢了!!!!!顺便告诉我完型填空那几个词组什么意思!!!1.we must do our best to save the____(濒危的)animals and plants.
2.the heavy man _____(重) as much as 200 pounds.
选词填空,每个词只能用一次.
break down . sell out .show up. stay up. pull down.according to. by mistake. keep out. aim at. part of.
1.basketball has been become ______my life.
2.people use the umbrellas for______not only the rain,but also the sun.
3.this book is ______specifically _____the football fans.
4.i took your umbrella________yesterday.
5.i am against_______the old city walls.
6. nobody saw him at the meeting.he______till the meeting was over.
7.the bus _____on my way to school yesterday.
8.when i got to the bookstore,harry potter had been ______.
9.the homework was too much so i had to ______in my room all night to finish it.
10.the boys were divided into three groups_______their height.
我对一般过去式和现在完成时不太明白,不知道该怎么改变形式,什么时候运用,请各位高手么帮助一下!