I. 用所给动词的适当的过去时或将来时的形式填充。
1. Let's keep to the point or we ______ never_______ (reach) any decisions.
2. My mind wasn't on what he was saying, so I'm afraid I______ (miss) half of it.
3. I don’t think Jim saw me; he _____ just ______ (stare) into space.
4. I ____
