- You talk so much about London. You ________have been there. - Yeah, I went sightseeing on a tour last summer.
#62580
A
must
B
can
C
will
D
need
推荐题目
-May we leave the classroom now? -No, you ______. You ______ to leave until the bell rings.
#78353
A
mustn’t, are allowed
B
don’t have to, are supposed
C
needn’t, aren’t allowed
D
can’t, aren’t supposed