1.2都不正确. come 是短暂动词,不能和时间段(how long ,how many days ) 同时出现.
应该改为: How long has he been here ? How many days has he been away from here ?
1.2都不正确. come 是短暂动词,不能和时间段(how long ,how many days ) 同时出现.
应该改为: How long has he been here ? How many days has he been away from here ?