1) She ....... playing football. a) isn't b) aren't 2) He ....... swimming. a) aren't b) isn't 3) You ....... riding a bike. a) aren't  b) isn't 4) They ... ... wearing skirts.  a) isn't b) aren't 5) I ... ... singing.  a) 'm not b) aren't 6) It ....... sleeping.  a) isn't b) 'm not

FH2 U23 Gr

由
嵌入

排行榜

視覺風格

選項

切換範本

恢復自動保存: ?