Toggle Navigation
Games
Blog
News
Class PIN
Join for Free
Sign in
Toggle Navigation
Games
PIN
Join for Free
Blog
Pricing
News
Contact us
Help center
Sign in
Study
I3 U4 G1 G2
0
%
0
0
0
Back
Restart
Workers pick the cotton from the fields.
The cotton is picked from the fields.
Oops!
Okay!
Textile machines clean the cotton and separate it into smaller pieces.
The cotton is cleaned and it’s separated into smaller pieces.
Oops!
Okay!
More machines pull and twist the rope until it’s thin.
The rope is pulled and twisted until it’s thin.
Oops!
Okay!
I ordered these shoes online but they don't fit.
should/shouldn't + have + past participle
Oops!
Okay!
People use special machines to separate the fibres.
Special machines are used to separate the fibres.
Oops!
Okay!
Last year’s clothes are too small for me now.
could + verb
Oops!
Okay!
How does this outfit look for the party?
should/shouldn't + verb
Oops!
Okay!
I don't know what to do with my old clothes
could + verb
Oops!
Okay!
Machines remove the seeds from the cotton.
Seeds are removed from the cotton.
Oops!
Okay!
These machines work the cotton into a kind of soft, untwisted rope.
The cotton is worked into a kind of soft, untwisted rope.
Oops!
Okay!
I've bought four T-shirts and got another one for free!
should/shouldn't + have + past participle
Oops!
Okay!
I threw my old clothes away yesterday.
could + have + past participle
Oops!
Okay!
Machines twist the fibres to make cotton thread.
The fibres are twisted to make cotton thread.
Oops!
Okay!
I’m going to dye this white shirt a nice bright red.
should/shouldn't + verb
Oops!
Okay!
My green necklace broke, so I threw it away.
could + have + past participle
Oops!
Okay!
People ship the cotton to textile mills.
The cotton is shipped to textile mills.
Oops!
Okay!
Your experience on this site will be improved by allowing cookies.
Allow cookies