By the time Jack returned home from England, his son            from college.
#101871
A
graduated
B
has graduated
C
had been
D
had graduated
推荐题目
My son __________ his clock  when I went to get a cup I __________ in his study.
#103412
A
was winding up; had left
B
would up; had forgotten
C
had wounded; left
D
was winding up; forgot
Few people seem to care about what a super star _____ before he/she became famous.
#102262
A
goes through  
B
is going through
C
have gone through
D
had gone through
I ____  talking to you.  You never listen to me.
#103385
A
feed up with
B
feed on
C
am fed up with
D
am fed up of