一般疑问句小练习I. 将下列句子改为一般疑问句。1. This is my English teacher. _?2. Purple and blue are my favourite colours. _?3. I like your pencil case._?II. 按要求完成下列各题。1. I have a headache. (变成一般疑问句并作否定回答)_?_.2. Do you like white backpacks? (作肯定回答)_.Key:I. 1. Is this your English teacher 2. Are purple and blue your favourite colours 3. Do you like my pencil caseII. 1. Do you have a headache? No, I dont. 2. Yes, I do.