I haven’t seen______ this since I collected stamps.
This training program can give you a lift at work,increase your income by 40%.
In our class there are 46 students,half wear glasses.
Before driving into the city, you are required to get your car.
They are living with their parents for the moment because their own house ____.
If you happen to get lost in the wild, you’d better stay ______ you are and wait for help.