Who’s the man over there? Is it Mr. Black? —It ______ be him. He’s much taller.

Some peoplefeel sick when they read a book in a car or on a boat．

Reading is ______ good habit. Stick to it, and you’ll make ______ great progress.

Here are some books for _____ sister and _____.

The new airport has been in _______ for two years and it _______ to be a quiet place.