You were lucky to 【come by】 a rare book like this.
You must pay the rent 【in advance】.
A：Thank you for your help. I think I understand what to do now. B：You’re welcome. If you have any questions, please don’t ( ) to ask.
Will you 【look after】 my children while I am away?
When I asked him whether he could go with us, he said that it was 【out of the question】.
His careless behavior 【brought about】 a serious problem.
【Look into】 this issue as soon as possible.
Having been to Kyoto many times, I am familiar ( ) these old temples.
Fortunately, everything 【turned out】 to be all right in the end.
In the last several years, there has been a movement to democratize the English language, ( ), to popularize it.