1) Is Mark eating? a) Yes, he is. b) No, he isn't. c) Yes, he isn't. d) No, he is. 2) Is Helen taking a photo? a) Yes, she is. b) No, she isn't. c) Yes, she isn't. d) No, she is. 3) Is John play the piano? a) Yes, he is. b) No, he isn't. c) Yes, he isn't. d) No, he is. 4) Are they cooking? a) Yes, they are. b) No, they aren't. c) Yes, they aren't. d) No, they are. 5) Is it playing? a) Yes, it is. b) No, it isn't. c) Yes, it isn't. d) No, it is.

排行榜

視覺風格

選項

切換範本

恢復自動保存: ?