----- Do you know when Tonny came back l
问题:
----- Do you know when Tonny came back last night?
----- Yes. It was not yet nine o’clock _____ he came back home.
A.before
B.when
C.that
D.until
----- Do you know when Tonny came back last night?
----- Yes. It was not yet nine o’clock _____ he came back home.
A.before
B.when
C.that
D.until