If you want to know more, here is an article about a tweak that will do it. http://www.idownloadblog.com/2012/10/06/ipad-mouse/. Though the article is old, the tweak it described still works on iOS 8.4. You can also connect a keyboard and mouse at the same time, and the iPad will display a cursor for the mouse.
Have + been + verb + -ing. The _______ is used for an event that has been completed before the present moment in time. Simple past. When a progressive tense is used in the independent clause, the dependent clause typically uses the _______ tense. Simple past. Read the quotation below and complete the instruction that follows.
In English grammar, a dependent clause is a group of words that has both a subject and a verb but (unlike an independent clause) cannot stand alone as a sentence. Also known as a subordinate clause. Dependent clauses include adverb clauses, adjective clauses, and noun clauses. Although exceptions can be found, a dependent clause at the beginning of a sentence is usually followed by a comma (as in this sentence). However, when a dependent clause appears at the end of a sentence, it's not usually set off with a comma, though again (as in this sentence) there are exceptions.