Question

7．Don't keep silence!The head teacher is       a lot about that．（　�。�

• A． able to know
• B． supposed to know
• C． supposing to know
• D． going to know

Answer 1

分析 不要保持沉默，班主任應(yīng)該對(duì)那件事知道很多．

解答 答案：B 根據(jù)be able to do sth〝能夠做某事〞；be supposed to do sth〝應(yīng)該做某事〞be going to do sth〝打算做某事〞可排除C，再根據(jù)句中Don't keep silence!讓對(duì)方不要沉默可推測班主任應(yīng)該對(duì)那件事知道很多，故填supposed to know〝應(yīng)該知道…〞故選B

點(diǎn)評(píng) 理解句意是解決此類題的關(guān)鍵和前提，再了解選項(xiàng)含義篩選出合適的短語．