—Helen, do you like math?—No, I don’t. It’s __________.
--- Have you ever been to Singapore? ---Yes.I ________there last year with my parents.
---Do you mind my opening the window to let the fresh air in? ---__________.I also would like to breathe in some fresh air.
Some of my friends eat with their eyes.They prefer to order what______ nice.
-- _______ will the fog and haze(雾霾) last? ---I have no ideA.There is no sign of an enD. A.How longB.How soon C.How farD.How often
Most boys____ guns to dolls while most girls ___ have dolls than guns.