19.The professor ______ his thoughts before giving his lecture.( )
A. | organized | B. | recognized | C. | realized | D. | considered |
18.The loss of 100lives in the aircraft crash was a great ______.( )
0 143363 143371 143377 143381 143387 143389 143393 143399 143401 143407 143413 143417 143419 143423 143429 143431 143437 143441 143443 143447 143449 143453 143455 143457 143458 143459 143461 143462 143463 143465 143467 143471 143473 143477 143479 143483 143489 143491 143497 143501 143503 143507 143513 143519 143521 143527 143531 143533 143539 143543 143549 143557 151629
A. | incident | B. | event | C. | affair | D. | disaster |