【正文】
B. runs C. walking D. running running runner A 考點(diǎn)直擊 2. ① We are ______________ (學(xué)習(xí) ) English in the classroom. ② 他正在書房看書。t talking 考點(diǎn)直擊 3. David is swimming in the river. (改為一般疑問句 ) in the river? 4. Are they having a good time? (作肯定回答 ) Yes, . Is David swimming they are 。 Don’t________________ a car. It’s dangerous. run for 考點(diǎn)直擊 5. Mr Green is not at