The first edition ________ in 1955 and ________ a best seller ever since

It is a warm day, isn’t it? —Yes, it’s _____ cold. I just wear a jacket.

nson on duty today—It ________ be him, but I’m not sure.

Father put the ladder(梯子)_________ the tree to pick the apples for me.

skirt is too expensive; its colortoo dark, and…—_______ Is there anyone so particularlike you