---John, why are you so upset? ---I­­­      my cell phone all morning but it is nowhere to be found.
#101303
A
am looking for
B
have looked for
C
have been looking for
D
had looked for
推荐题目
Because the shop_______, all the T-shirts are sold at half price.
#99936
A
has closed down
B
closed down
C
is closing down
D
had had closed down
—Have you ____ been to our town before?—No, it’s the first time I ___ here.
#104298
A
even, come
B
even, have come
C
ever, come
D
ever, have come
—What do you think of the film Avatar?—It________be better.I even want to see it twice.
#101054
A
couldn’t
B
won’t
C
shouldn’t   
D
mightn’t