who newly came to theclass, has already earned both the trust of her classmates and _________ of herteachers

“How was ______ they discovered theentrance to the underground palace” “Totally by chance.”

It is ____ he often fails inexams____makes his parents worried about him. [ ]

Computers have made a greatdifference _______ our everyday life.

____ Helen’s knowledge and vocabulary expanded, sheasked more and more questions.