1.能!He can finish his homework in 5 minutes.其意思不表示“能够”时,“仅用在疑问句,否定句中”
2.ok,fine
3.可以,还有become
4.He had done his homework three days ago.
1.能!He can finish his homework in 5 minutes.其意思不表示“能够”时,“仅用在疑问句,否定句中”
2.ok,fine
3.可以,还有become
4.He had done his homework three days ago.