1.We are glad to see consunmers have made an encouraging ___

1.We are glad to see consunmers have made an encouraging ____to our new products.
A.demand B.difference C.word D.response
2.The most important words in this sentence have been ____,so it doesn't make any sense,
A.set out B.put out C.left out D.held out
3.Listen to the girl by the windows.What song_____?
A.is she singing
B.has she been singing
C.did she sing
D.was she singing.
4.I'll go with you as soon as I ____ my work.
A.will finish B.shall finish C.finish D.finished