题目：
— Listen! It is still noisy in the head teacher's office.
— Go and see _____ they have finished correcting the papers yet. [ ]
A.though
B.whether
C.unless
D.while
答案：
答案：B
— Listen! It is still noisy in the head teacher's office.
— Go and see _____ they have finished correcting the papers yet. [ ]
A.though
B.whether
C.unless
D.while
答案：B
