_______ you study harder, you’ll fall behind others.A. If B. Unless C. Until
Simon, Kitty says she a comic book in your home yesterday.
I ________ I could fly to the moon one day.
She left in_______ a hurry _______she forgot to lock the door.
Dr. Ma used to two or three persons in the hospital.
The children without parents ______ good care of by their teachers in this special school.