1. I was playing basketball with my friends from 2 pm to 4 pm last Saturday.2. The president is to/will/is going to visit USA next week.注意：一般情况下三种用法都可以，更严密的考虑可以用is to visit3. The teacher will take all students in class to go on a picnic in the park tomorrow.4. Yesterday, Tom told the teacher that he would win the first place in the exam next week.5. He was going to take me to the cinema yesterday, but he didnt.6.7.1实 用 文 档