402. It's proved that the approver improved waterproof roof.
403. In the reaction, the fraction acts as an agent.
404. Actually the actor and actress reacted actively to the activity.
405. In the racial horse-race, the white racer's race-horse won.
406. I feel a trace of disgrace for the gracious man's embracing her bracelet.
407. The preface is written on the surface of the furnace that faces the space facilities.
408. "In fact, some factors are unsatisfactory to the factory,"the dissatisfied manager said.
409. The manufacturer manually manufactured many machines for the manufactory.
410. The exact contact with practice has practical impact on me.
411. To make the contract attractive, the contractor subtracted a tractor from it.
412. In this chapter, the capture characterized the characteristics of the characters.
413. The captive captivated by the apt adaptation rapped the cavity with rapture.
414. I'm in charge of discharging a large amount of charcoal and coal at the coal mine.
415. With shortcomings overcome, the outcome become welcome.
416. At the station the statesman hesitates to state the status of the statue.
417. The limitation on the imitations is preliminarily eliminated.
418. The unconventional convention put many people to inconvenience.
419. The ventilator inventor's adventure prevented him from venturing revenge.
420. Even the evening event couldn't eventually spoil the joy of the New Year's Eve.