Research shows that teenagers ________ talk abouttheir day with family members at the dinner table are less likely to engage inhigh-risk behavior.

I used to ______ late, but now, I’m used to _____early

Kitty spends a lot of time after-schoolactivities, but Linda spends little time ____it.

Good technique in medicine means less pain and fewer deaths ________ it is our duty to master it[ ]

下列各句中，没有语病的一句是