How do you study for atest — I study _____working with a group.

It is reported that the police will soonthe case of the two missing children.

_______ on earth is it _______ has eaten up all the leaves of these young trees in just one night?

The film will be on at half past eight.—Oh, I _____ go now, or I will be late for it.

They are living with their parents at present because their own house ________.