Watch! —I ____ but ____ I ____ anything unusual

_______form the top of the tower, the south foot of the mountain is a sea of trees

y, my thanks go to my tutor, who has offered alot of suggestions and comments on my paper and ________ every page of mydraft.

The teacher found difficultto believe that Tommy was the laziest boy in class.

下列句子中，交际用语使用得体的一项是