Whenhesuddenly________upthesubjectofgeneticengineering,therewasanembarrassedsilence.
A、tookI'm sorry I forgot to write; I had so much else ________ my mind.
ShegotajobasanassistantstagemanagerattheCambridgeArtsFestivalTheatre,thinkingthatitmight________toacareerasaplaywright(剧作家).
Iwon't________thosechildrenmakinganoiseinmyhouse!
He thoroughly understood the society __________.
The farmer had to wear heavy boots in the winter because the fields were too wet and________.
