I don’t know ______ or not he will come to the party tomorrow evening.A. weatherB. ifC.
A. weather
B. if
C. that
D. whether
A. weather
B. if
C. that
D. whether
—Do you know Jim quarreled with his brother? —I don't know, ______.
A.nor don't I care
B.nor do I care
C.I don't care neither
D.I don't care also
Don't ______ to let me know if there is anything I can do for you.
A.reject
B.prevent
C.hesitate
D.refuse
He has ______ told me about it. I don’t know why.
A: ever
B: even
C: already
D: never
I don't know(). I just arrived here two minutes ago.
A. what's going on
B. how is going on
C. who is going on
I don't know the man______you are talking about.
A.who's
B.whose
C.whom
D.who
Sorry, I don' t know he is a friend of______.
A.your brother
B.your brothers
C.your brother' s friend
D.your brother' s