My daughter helps me cook,but she isn't old enough to be left alone in the ______.( )
bedroom
classroom
lab
kitchen
The boy is taller than_____ in his class.
Your watch is quite nice, where did you buy _____? I want to buy _____ too.
---Could we see each other at 9 o’clock tomorrow morning? --- Sorry , let’s make it _______ time.
—What did you do yesterday? —My brother took two friends of ______ to play chess with us. But I don’t know ___ of them.
She got up to get some sleeping pills but found there was _________ left at home.