答案解析:
1.答案: the foreign guests were given a warm welcome // the foreign guests were welcomed warmly
详解:
考查词组:"热烈欢迎"的表达: 名词形式用warm welcome,动词形式用be welcomed warmly.
考查词汇: "外宾"表达是foreign guests.
2.答案: Because/Since the freshmen often lose their way on campus// Because/Since the freshmen often get lost on campus.
详解:
考查原因状语从句: 在句首接从句表示原因常用because/since.
考查固定搭配"迷路"表达: 常用固定搭配lose one's way或get lost.
考查词汇: "大一新生"表达为freshmen.