【題目】For your own s_________(安全), please do not smoke inside the plane.

【題目】Don’t worry about the children. They’re old enough to take good care of t__________ (他們自己).

【題目】She had n________( 從不 ) for one moment imagined that it could happen to her.

【題目】Young students must be taught how to deal with dangerous s________ (情況).

【題目】The chair that you broke yesterday is now being r________ (修理).

【題目】—Which one of the books do you want?

【題目】—Can we get good grades in the exam?

【題目】Amy is so lazy that you can’t ________ her to wash the dishes.

【題目】He wouldn't give up smoking ______ his doctor told him it was a matter of life and death.

【題目】Allen often teaches ________ math, sometimes, he asks his friend for help.