答案解析:
1.答案:He must have communicated/talked with his parents
詳解:
考查情態動詞表示猜測:must have done表示對過去事情作很有把握的推測。
考查詞語:“跟…溝通”譯為communicate/talk with sb.
2.答案:(that)food security/safety gave rise to lots of problems
詳解:
考查seeing that“由于,鑒于”引導的原因狀語從句,that可以省略。
考查短語:“引發”譯作give rise to;“食品安全”譯作food security/safety。