This word can be used both as a noun ___ as a verb.
I smell something __________ in the kitchen. Can I call you back in a minute?
If _________, the bird flu would produce a powerful poison that would kill the patients.A. not treat B not treated C untreated D. Both B and C
We all know that, __________, the situation will get worse.
I spoke that slowly but I didn’t __________my meaning __________.
---How’s your tour around the North Lake? Is it beautiful? ---It __________ be, but it is now heavily polluted.