We should go to school by bus instead of by car. –Yeah, cars we use, pollution there will be.

The Charles Dickens Museum in Doughty Street is theonly one of his Londonhomes to survive，______hewrote Oliver Twist

________ are they—They are my ________.

Mark Twin’s own story is as memorable as _______he imagined.

____ by taking part in practice can the young peoplebe toughened and hardened into steel