In my opinion, life in the twenty-first century is much easier than ___________.
A. that used to be B. it is used to
C. it was used to D. it used to be
The field research will take Joan and Paul about five months; it will be a long time _________ we meet them again.
A. after B. before C. since D. when
— I phoned you yesterday morning. A girl answered, but I didn’t recognize the voice.
— Oh, it __________ my younger sister. She was in my room at that moment.
A. must have been B. should have been
C. could have been D. may have been
He _______ Alice for ten years.
A. married to B. has married to
C. has married D. has been married to
He hesitated for a moment before kicking the ball, otherwise he ______ a goal.
A. had scored B. scored
C. would score D. would have scored
The river ____are covered with trees is very long
A. which banks B. of which banks
C. whose the banks D. the banks of which