______ without friends ______ the most difficultchallenge for Chuck while living on the island.

I failed to catch the early bus because I overslept this morning． —You_________have stayed up too late last night．

n use a large plastic bottle, cutoff, as a pot to grow flowers in.

He ought ot have been warned of the danger. — ____, but he wouldn’t listen to me. [ ]

ou tell me what time the flight to Detroitleaves—I’m sorry, but it _______________.