________, John has been to several foreign countries.
A、EvenheisyoungB
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He thoroughly understood the society __________.
Constructionoftherailwayshelpedtodevelopthenational_______ofTanzaniaandZambia.
The farmer had to wear heavy boots in the winter because the fields were too wet and________.
She got a job as an assistant stage manager at the Cambridge Arts Festival Theatre, thinkingthat it might ________ to a career as a playwright ( 剧作家 ).
I don't know how we can make ________ on the timetable for any more courses.
