Lesson 1-2培优专项训练I.1-5 CDCDBII. 1. in, on 2. from 3. from, to 4. for, to 5. in, for 6. for 7. On 8. aboutIII. 1. How far 2. How long will, stay3. Who is 4. What will they do 5. What time willIV. 1. May I, play with 2. are planning to visit 3. will send you 4. What do you think of 5. How farV. 1-5 ACBDC 6-10 DABBC