The entrance exam is only fifteen days away from now. You will fail the exam ______ you study hard from now on.
The number of people invited _________ fifty, but a number of them _________ absent for different reasons.
We _____ John’s name on the race list yesterday but for his recent injury.
What advantages do you think London ________other cities in hosting the 30th Olympic Games?
Look! One of my friends with a model plane over there.