句型转换 1.Helen is reciting a Chinese poen now

句型转换 1.Helen is reciting a Chinese poen now
句型转换
1.Helen is reciting a Chinese poen now.(用just now代替now)
Helen（ ）a Chinese poem just now.
2.Sally sang an English song at the party.（改为否定句）
Sally（ ）（ ）an English song at the party
3.Steve performed magic tricks yesterday.（改为一般疑问句）
（ ）Steve（ ）magic tricks yesterday?
4.Did the children see a movie last night?
No,（）（）.