摘要：两种情况：一种根据时态要另加do/does/did； 另一种直接提前can, will之类的情态动词或系动词am/is/are/was/were等。 如：He is very tall.---Is he very tall? He often does his homework well.----Does he often do
两种情况：一种根据时态要另加do/does/did；
另一种直接提前can, will之类的情态动词或系动词am/is/are/was/were等。
如：He is very tall.---Is he very tall?
He often does his homework well.----Does he often do his homework well?
