I think zoos can provide homes ______many endangered animals. A. for B. with C. to
I will go to visit my aunt in England ______ the summer holiday starts.
The little boy is only six years old, _________ he can make wonderful model cars.
Please knock at the door ________ you come into the room.
A tourist will easily lose his way in Beijing ______ he has a map or a guide.
Be quick, ___we’ll be late for school.