答案解析:
1.答案: has tripled that of last year//has increased by times compared with last year
詳解:
考查倍數: “增加了三倍”譯has tripled或has increased by three times.
考查短語: so far意為“迄今為止",通常跟現在完成時連用。
2. 答案: Suddenly came up with a good idea.
詳解:
考查時態: 句首分句用了過去完成進行時,表示在過去某個時間之前一直在進行的動作或反復的動作。后一分句用一般過去時,強調過去某個時候發生的動作。
考查短語: "想出" 可譯為come up with.