动词过去式规则变化 — 英语填空题
题目
用所给动词的适当形式填空（规则变化）。1. Last Sunday, Mike ___ (help) his mother clean the house. 2. The boy ___ (cry) because he told a lie to his friend. 3. We ___ (plant) some trees near our school yesterday. 4. She ___ (study) hard and ___ (finish) her homework before dinner.