Another challenge to me was not to _____ myself ___ ifI ate something that was unhea

（)that you no longer require our services was a great disappointment to me.

Clements was challenged by another pioneer ecologist, Henry Gleason, who took the opposite

My heart ______ because I thought he was going to dump me for another girl.A) sinkB)

A: _____another piece of chicken, Sally？B: No, thanks. It was delicious, but I ’m really

50) In dealing with a challenge on such a scale, it is no exaggeration to say “Unity we st

完形填空 。 Another persons enthusiasm was what set me moving toward the success I have achieved. Th