Granny often tells us _______ water in our daily life.

_____ weekdays, he often gets up _____ six o’clock. [ ]

What do you think of the four classics (名著)of China?－I hear that they are wonderful, but I’ve read _______ of them.

Do you know_______ this dictionary belongs to? -Let me see. Oh, it’s_______.

Have you heard of Zhai Mo ______became the first Chinese person to travel around the world in a sailboat?