The engine just won’t start. Something seems_______ wrong with it.
A. to go B. to have gone
C. going D. having gone
This page needed_______ again.
A. being checked B. checked
C. to check D. to be checked
The fact has worried many scientists ______the Earth is becoming warmer and warmer these years.
A. what B. which
C. that D. though
According to a recent survey, homework is_______ students most often blame for their lack of sleep.
A. what B. that
C. where D. why
Teachers suggest that parents_______ their children under 12 to ride bicycles to school for safety.
A. not allow B. do not allow
C. mustn’t allow D. couldn’t allow
When you finish reading this book, you will have_______ better understanding of_______ life.
A. a; the B. the ; a
C. /; the D. a ; /
