-I'm afraid you can't smoke here. Look at the sign,please.
-I'm Sorry , I_____see it[ ]
A. didn't
B. haven't
C. won't
D. can't
答案:A
-I'm afraid you can't smoke here. Look at the sign,please.
-I'm Sorry , I_____see it[ ]
A. didn't
B. haven't
C. won't
D. can't
答案:A