With the help of the new technology, you __ e-mail your friends by mobile phone.

A good rest between classes ________ recover brain power to its best and make us perform better in class later.

The bicycle looks much like mine, but it isn’t.        it be John’s?

---Who is the tallest boy?      ---It ______ be John.. John is of medium height.

Tina_________wait _________ see her parents .