I have lived here _____five years.[ ]

Is this your e-book? —No, ________ is on the teacher’s desk.

Each year __________ fishes are killed by the polluted water and many people are made sick by the polluted air .—-So we should do something to stop it .

Scientists are trying to ways to treat the terrible disease called H7N9.

Are your parents strict _____ you?[ ]