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.
How to use Unless. Unless means the same as if...not. Like if, unless is followed by a present tense, a past tense, or a past perfect tense (never by a conditional). Unless is used instead of if...not in conditional sentences of all types. The order of the clauses doesn't matter with sentences using unless.