问一下下面几题的问句.（1）They're walking .（2）The tigers are swimming.(3) It"s eatig meat.(4)no,she isn"t.she isn‘t playing chess.(5)no,we aren"t.we aren’t watching insects.(6)The bird is flying.(7)yes,the dog is walking.
问题描述：
问一下下面几题的问句.（1）They're walking .（2）The tigers are swimming.(3) It"s eatig meat.
(4)no,she isn"t.she isn‘t playing chess.
(5)no,we aren"t.we aren’t watching insects.
(6)The bird is flying.
(7)yes,the dog is walking.
答
1, what are they doing?2. what are the tigers doing?3. what is it doing?4. is she playing chess?5. are you watching insects?6. what is the bird doing?7. is the dog walking?