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We should read such books ____ will make us better and wiser.

He studied hard and later became a well-known writer, ____ his father expected.

____ was expected, he succeeded in the exam.

During the week ____ he tried to collect materials for his article.

He failed in the exam, ____ proves that he wasn’t working hard enough.

Do you know the reason ____ she has changed her mind?

I have bought two pens, ____ write well.

The old man had three sons, all of ____ died during World War Ⅱ.

____ we is known to all, English is not very difficult to learn.

He returned home safe and sound after a fierce battle, ____ was unexpected.