55. All the students envied him _____ having succeeded in the TOFEL test.
_________with the size of the whole earth,the highest mountain does not seem high at all.
The bridge was named_________ the hero who gave his life for the cause of the people.
.The harder you_________,the better progress you_________.
When_________why he was late, he made no answer.
—May I keep your company there?—You may_________.