In the last twenty years, seven Canadian scientists _____ the Nobel prize! 
#100223
A
won
B
had won
C
was winning
D
have won
推荐题目
    Bruce _________his leg when he _____ in a football match yesterday afternoon.
#103664
A
broke; played
B
has broken; was playing
C
broke; was playing
D
was breaking; played
—Ouch! You hurt me. —I’m sorry. But I _____ any harm. I _____ to drive a rat out.
#100219
A
don’t’ mean; am trying
B
didn’t mean; tried
C
haven’t meant; tried
D
didn’t mean; was trying
— You’ve left the light on. — Oh, so I have. _____ and turn it off.
#100030
A
I go
B
I’ve gone
C
I’ll go
D
I’m going