By the time Jack returned home from England, his son __________from college. 
#101958
A
graduated
B
has graduated
C
had been graduating
D
had graduated
推荐题目
The company in our city ______ those big investors from the West. 
#102565
A
has a link with
B
has a hand in
C
is in line with
D
is in charge of
—Hey! What's the rush?—The plane ________ at 4∶00 and I need to see my uncle off.
#101263
A
takes off
B
will take off
C
has taken off
D
took off
I like swimming, while what my brother enjoys ____. 
#104218
A
cooking
B
to cook
C
is cooking
D
cook