判断下列各句是否是名词性从句,若是在横线上写出是什么从句,如“主语从句”、“宾语从句”、“表语从句”、“同位语从句”等,若不是在横线上写“不是”。 1. China is no longer what it used to be. ( _____ ) 2. The truth that the earth turns around the sun is known to all. ( _____ ) 3. It was snowing when he arrived at the station. ( _____ ) 4. How he persuaded the manager to change the plan is interesting to us all. ( _____ ) 5. The news that they had won the game soon spread over the whole school. ( _____ ) 6. The news that you told me yesterday was really disappointing. ( _____ ) 7. The house is where Lu Xun used to live. ( _____ ) 8. He spoke as if he understood what he was talking about. ( _____ ) 9. Do you remember the teacher who taught us English at middle school? ( _____ ) 10. I wonder why she refused my invitation. ( _____ )