祈使句的肯定与否定形式 — 英语词汇题
题目
At the school garden, Mia is making a sign. Complete each rule with the correct form of the verb in brackets. Use one or two words. 1. ______ the flowers, please. (not pick) 2. ______ the plants every day. (water) 3. ______ on the grass. (not walk)