---With 4G mobile phones, people can even see each other as they talk. ----Really? Would you show me it, please?
I can’t imagine ________ with him in the same room.
I can use my ________ to take high-quality images.
Life on Mars will be better than life on Earth __________many ways.
-_________I have a try on this pair of boot ? -Yes,you _________.
This is a big class,and _________of the students _________boys.