1.sign:1) 提问:Which sign means “Don’t …”? What does this sign mean?2) Don’t+动词原形.
Don’t play ball games.3) No+动名词. No+名词复数.
No smoking. No ball games.4) 回答:I’m sorry. /We’re sorry.2.单复数:1) some+不可数名词/可数名词的复数否定句和一般疑问句中的some改成any.如果以Can I/we…? /May I…? /Would you like…?引导的一般疑问句中,希望得到别人明确的答复...