Mr. Sawyer started his career at Stanford University, _____ he became Professor of Physics in 2002.
"I ___ asleep all afternoon, so I didn’t hear the phone,"he _____ to me.
"I ___ asleep all afternoon, so I didn’t hear the phone,"
he _____ to me.
A lot of people don’t learn from their mistakes ______ they get hurt.
The Russian Railway has _______ the prices of tickets for long-distance trains.
The winner of the race is tall and thin; he _______ be my friend, Mike, who is short and fat.
To learn how their children are doing at school, parents need to _______ the teachers every now and then.
To learn how their children are doing at school, parents
need to _______ the teachers every now and then.