如果沒有情態動詞和be動詞改一般疑問句時有兩種情況:
一、有助動詞,把助動詞移至句首。如:Tom has gone to the park. 改成一般疑問句是Has Tom gone to the park?
二、無助動詞,在句首加Does或Did。如:Tom goes to school on foot. 改成一般疑問句是Does Tom go to school on foot?
如果沒有情態動詞和be動詞改一般疑問句時有兩種情況:
一、有助動詞,把助動詞移至句首。如:Tom has gone to the park. 改成一般疑問句是Has Tom gone to the park?
二、無助動詞,在句首加Does或Did。如:Tom goes to school on foot. 改成一般疑問句是Does Tom go to school on foot?