—Do you know ______ Tom was punished by his father?
—That was ______ he refused to go to school.
A. why; because B. when; why C. how; when D. why; why
This cake is very sweet. You ______ a lot of sugar in it.
A. should put B. might put C. could have put D. must have put
To keep slim, many young girls prefer going on a ______.
A. food B. diet C. healthy D. dinner
—What do you think of the story?
—Wonderful! It ______ my childhood.
A. reminds me in B. reminds me of
C. brings me to D. reminds me to think of
______ life began on earth is one of the biggest puzzles that scientist found hard ______.
A. How; solving B. When; to be solved
C. How; to solve D. Which; to solve
Was it because his mother was ill ______ he didn’t go to school?
A. so B. that C. why D. when