PayPal sandbox is used for to test how the real Paypal features will appear when used on the real Paypal. It is like using a copy of a PayPal for the purpose of testing.
The 12 most commonly used Interjections:yesohyeahnoheyhihellohmmahwowouchhurray
what are the most commonly used price indexes
What is the most commonly used e-communication
Arabic is the most commonly used language in the Sahara.
Interjections are most commonly used in speech or dialogue.
I believe that Crest is the most commonly used toothpaste in America.
The most commonly used sclerosants are ethanolamine and sodium tetradecyl sulfate
"E" is the most commonly used letter in English. "S" is the most commonly used first letter for words.
The second most commonly used vowel in English is "E".
Not having statistical information, I believe "and" would have to be easily the most commonly used conjunction.
Acetazolamide (Diamox) is the most commonly used carbonix anhydrase inhibitor.