AlthoughSPanish，heattendedthecourse.
A、hewasknowingheisknowinghavingaknowledgeofknows
B、hewasknowingheisknowinghavingaknowledgeofknows
C、hewasknowingheisknowinghavingaknowledgeofknows
D、hewasknowingheisknowinghavingaknowledgeofknows
Duetothebadweathertheplanewas____fortwohours.
A、delayed
B、canceled
C、postponed
D、dismissed
Allofusknow,color-blindpeopleoftenfinditdifficultto__betweenblueandgreen.
A、separate
B、distinguish
C、compare
D、contrast
Henoticedthehelicopterhoveringoverthefield.Thentohisastonishment,hesawaropeladder_____outandthreemenclimbingdownit.
A、throwing
B、beingthrown
C、havingthrown
D、havingbeenthrown
Priceshaverecentlyriseninorderto__________theincreasedcostofrawmaterials.
A、cut
B、buoy
C、offer
D、offset