48 Denise spent hours sitting in front of her desk. She still could not ______ out how to solve the puzzle.
(A)set
(B)figure
(C)look
(D)knock

Denise spent hours sitting in front of her desk.nShe still could not figure out how to solve the puzzle.

丹尼斯花了幾小時坐在書桌前,她依然沒法想法如何解法困惑  

*set out開始

He set out to paint the whole house but finished only thenfront part.

他開始著手粉刷整幢房子，可是只完成了前面的部分。

*figure  [ˈfɪɡjɚ]  名複: figures  

過去式:figured  過去分詞:figured  現在進行時:figuring 

cut a fine/good figure 嶄露頭角；儀表甚佳

cut a poor/sorry figure 出醜；顯出可憐相

figure in 把……計算在內

figure on 料想

figure out算出；想出；理解

*look out 小心

*knock  [nɑk]   名複: knocks

過去式:knocked  過去分詞:knocked  現在進行時:knocking  

knock about 漂泊；漫遊  毆打；虐待

knock down 擊倒；擊落  拆毀  降低

knock off 撞倒；打掉 n減去  停止；歇工

knock out 擊倒  使昏迷  淘汰

knock over 打翻；撞倒  使驚奇  消除

nnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn

knock up （使）筋疲力盡 n賺得

Denise spent hours sitting in front of her desk. She still could not figure out how to solve the puzzle.

丹尼斯花了幾個小時坐在她的辦公桌前。她仍然無法弄清楚如何解決這一難題。

figure out 計算

look out看出

knock out 淘汰；擊倒