英语语法2000题-每天做5题-Day 140

make sb. adj/do 使……怎么样

Keep sb. doing 使……一直做

by 引……为止

at noon /night

in spring/summer/autumn/winter

how long 多长时间，时间段 ☞现在完成时have/has done 延续性动词

borrowed bought received (收到) ✘ been back 状态✔

accept (接受)

had better (not) do最好(不)做

名词所有格 1.+'s

2.-s复数+'

3.-s单数+'s/'

共有+1 分别有，都加 's