I’m 13 years old and my sister is 15 years old. So my sister is

Singapore is very hot _____ .[ ]

Your iPad is quite nice. Where did you buy ______? I want to buy ______, too.

Mr. Zhou, _____ the Iphone belong to Alice?-I’m afraid not. It may be John’s, but I’m not sure.

They’ve got two machines, but ________ works well.