While teaching students, teachers should take into consideration ______ students develop at different rates.

Uncle Wang has lived here _______ 1989. [ ]

Was Tom nervous before making a speech to the class?—Yes, he was. I noticed his hand_______ .

Some of my friends are interested in science, but none of them can tell ____________.

If you are invited to any special occasion such as a wedding or a celebration, you’ll have to be ____ dressed.