A chemical found in all living things and therefore an indicator of bacteria. Hope I helped :)
Answer:
Explanation:
I am not sure what you're asking maybe an example?
If so that is easy! Lets do an example for #2 "meet your friends".
Now with Past Simple Tick you just want to word it in a way where it is asking a question about the past. Not the future or present.
Non example : When are you going to meet your new online friends?
Non example : Are you meeting your friends today?
Example : Did you meet your friends yesterday?
Example : Last weekend did you meet your friends?
I hope this helps!
If you have any questions with the others let me know!
The answer is c the answer is c
