The new advertisement of McDonald's boasted a/an ___ variety

a variety of 和the variety of 的区别? the variety of,a variety of 的区别? the variety of和a variety of一样吗?为什么  小题1:What’s the purpose of the advertisement? A．To intr a variety of books the childen of different ages the new electric motorcycle is the newest variety we made,an english:why use the word McDonald's not McDonald? [W69] The Changbaishan Mountains have a huge variety of scen 1.A variety of courses _____offered to enrish the students' 英语翻译Available in a wide variety of elastic qualities ...the A wide variety of spices were available in the market. ( )at the ___ of the new term we make a new plan.A.begin B.b