13. What do we know about the woman?(A) She lives close to the office. (B) She is new to the company
15. Why was Susan late for work?(A) She missed the bus. (B) Her train was late. (C) Her car broke do
16. What will the man do the next day?(A) Go to work by train. (B) Visit Lily in her flat. (C) Leave
17. Where can you most probably hear this talk?(A) In a class of the English language. (B) In a clas
【題組】(b) (7%) Derive the probability mass function of W1. You have to givethe derivation, not just th
20. Why is the class popular?(A) It is not offered each term. (B) It’s taught by Professor Morris.(C
22. Some pre-school children go to a day care center, ______ they learn simple games and songs.(A) t
24. —It’s a long time since I saw my sister. — ______ her this weekend?(A) Why not visit (B) why not
26. I won’t call you, _______ something unexpected happens.(A) unless (B) whether (C) because (D) wh