yes
Yes, it is common to put a period after "Mrs." as it is an abbreviation for "missus."
No, typically you do not need to put a period after "Ave" when using it in a sentence. However, if "Ave" is being used as an abbreviation for "Avenue" in an address, then a period would be used after it.
No, you do not put an extra period after "etc." since the period at the end of "etc." serves as the ending punctuation for the sentence.
Yes. The period shows that your sentence is finished.
No, you put a period or spell it out so people don't think you meet street.
No
On Amazon, the cost of an eight pound shot put ranges from about $12 to about $20.
Yes
A hole :)
There are 16 ounces to a pound. Doesn't matter if it's one pound of dirt or one pound of bricks.
You put a period at the end of the sentence to indicate that the sentence has ended.
No. You put only one period.
put the patch on the Sunday after you start your period
Yes, you do put a period after "et al." in citations.
The English first used pound, when trying to find a shorter way to say it.
You cook a 7 pound roast at 40 minutes per pound for 4 hours and 40 minutes.
Yes, it is common to put a period after "Mrs." as it is an abbreviation for "missus."