hours. (2006湖南) a. can; have to b. may; can c. have to; may d. ought to; must 2. — how’s your tour around the north lake? is it beautiful? — it ________ be, but it is now heavily polluted. (2007全国i) a. will b. would c. should d. must 3. i told your friend how to get to the hotel, but perhaps i ________ have driven her there. (2007陕西) a. could b. must c. might d. should 4. — she looks very happy. she _____ have passed the exam. — i guess so. it’s not difficult after all. (2007江苏) a. should b. could c. must d. might 5. — where is my dictionary? i remember i put it here yesterday.
