How many students in your classhave visited the White House—______.

Have you finished your composition?—Yes, I _____it in twenty minutes

These days Victoria has been __________ in her graduation paper and has no time to take care of her pet dog.[ ]

Working as a fireman is demanding, which ________ responding to emergency situations, rescuing lives and protecting properties from all types of accidents. [ ]

I hope he can _____ the first prize in the competition.