The theory most scientists objected to in the end .
A. being proved to be of significance B. was proved to be significance
C. proving to be significant D. proved to be significant
He knew the problem was serious and undertook to look into it he reached the office.
A. suddenly B. immediately C. abruptly D. shortly
To my delight, the snakes, carefully, turned out to be no trouble and all went well according to the plan.
A. monitoring B. being monitored C. having monitored D. monitored
Catch the star that holds your fate , ______that forever twinkles within your heart.
A. one B. the one C. it D. that
We have been excavating layers of ash almost six metres thick, which suggests that they________the fire burning all winter.
A. should keep B. might have kept C. should have kept D. might keep
Only in 1996 the determination and patience of the scientists with a breakthrough at last .
A. were ; paid off B. did; pay back C. did ; pay off D. did ; pay for
