Was Tom nervous before making a speech to the class?—Yes, he was. I noticed his hand_______ .

Robert is said _____ abroad, but I don’t know what country he studied in .

When you to learn to skate? — Five years ago.

What do you think about Chinese Post-90s generation ?–They are ­­­­­­­­­­­­_________ from those born before them. They are very aggressive and pretty confident because they never felt hardship.

The boy _______ that the duck _______ two eggs yesterday.