It was playing video games that took the boy too much time that
he have spent learning．
A．could B． must
C． might D． ought to
Tom’s score on the test is the highest in the class. He _____.
A. should study last night
B. should have studied last night
C. must have studied last night
D. must study last night
—Real Madrid is sure to win the match !
—It’ s hard to say . You know, anything ________ happen even in the last minute.
A. need B. must
C. should D. can
The doctor recommended that you ____________ swim after eating a large meal.
A. wouldn’t B. couldn’t
C. needn’t D. shouldn’t
Mr. Sawyer started his career at Stanford University, _____ he became Professor of Physics in 2002.
A. which B. where
C. when D. that
I still remember the accident and the troubles ______ has caused to me.
A. which B. what
C. it D. that
