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

I hear Mr. Brown will be our new manager. —-Right. His experience him for the position.

I would like ____________ to the park tomorrow. Why not __________ with me?

I _______ like science but I think it is very useful.

That’s a nice mobile phone. —It is. My aunt _____ it for my last birthday.