--Which do you like better, English or Chinese?

--________. I prefer math.

The weather in summer in Wuhan is hotter than ________ in Beijng.

Martin hated ________ when his mother sent him to a boarding school.

The biggest trouble I came across ________ English was how to learn the words by heart.

This is an interesting _______.

This is the best hour I can _______ I _______ in the past twelve years.

What ________ when I was out?

You'll find ________ helpful to read the book.

--Must I do some washing?

--Yes, you ________, but you ________ do it at once.

The flood happened ________.