各种 时 态 和语 态 的结 构 : 1
do/doesam/is/are+done 2
didwas/were+done 3
am/is/are doing am/is/are+being+done 4
was/were+doing was/were+being+done 5
will dowill be done am/is/are going to do am/is/are going to be done 6
would dowould be done was/were going to do was/were going to be done 7
have/has done have/has been done 8
had donehad been done 含情态 动词的主动和被动: 情态 动词+do情态 动词+be+done Exercises: 1
I clean my room every day
I cleaned my room yesterday
I am cleaning my room now
I will clean my room this evening
I have just cleaned my room
You can clean your room tomorrow
More exercises: 1
People use knives for cutting things 2
They filled the box with books
They make the bikes in the factory
People speak English in many countries
They will paint the