Every Friday is the school open day , __________ parents can go to the class to observe it .
Mr. Smith is always on time for everything. How ________ it be that he was late for the flight?
A good speaker is supposed to manage to ________ the listeners what he means.
Can it be in the drawer ________ you put your keys?
The price of pork has not been kept under control as expected, and _____ is more surprising is that the price has risen by 15% just in the past few months.
According to statistics, a man is more than twice as likely to die of skin cancer _____a woman.