. --- I think the waiter has forgotten us. We ________ here for over half an hour! --- I think you’re right. He probably thinks we have already ordered.
______ in thought, he almost knocked into the car before him.
He was no longer _______ by the news of his mother’s death.
The most important thing _____we should pay attention to is the first thing ____ I’ve said.
No matter how frequently ______, the works of Beethoven still attract people all over the world.
There are two lakes near Joe’s hometown, the larger of is nearly ten thousand square kilometers.