正确答案为：
1 Yes,he is going to take off his tie.
2 Yes,I am going to turn on the radio.
3 Yes,she is going to turn off the tap.
4 Yes,they are going to put on their clothes.
Is he going to take off his tie? （ ）
Are you going to turn on the radio? ( )
IS she going to turn off the tap? ( )
Are they going to put on their clothes? ( )