---What’s made Tommy so upset?

--- ______, I believe．It shocked him so much．

A．He lost the game

B．Lost the game

C．Losing the game

D．Because of losing the game

房间内不宜培养夹竹桃的主要原因是因为其（）

A.花不好看

B.长不大

C.释放出有害气体

D.会生虫子