The more teenagers watch actors smoking in films, the more ______ they are to take up the habit ofsmoking themselves [ ]

.—Jack fell off a ladder yesterday,but he’s all right.—He’s lucky;he _________ himself badly.

Our English teacher,as well as all the students, 　　　 we can only improve our reading by reading widely.

I went along the beach thinking of nothing____.

How did the accident happen— You know, it difficultto see the road clearly because it .