题目

—Can you tell me _____________?—About two months ago.A．where my watch isB．where is my watchC．when you bought your cameraD．when did you buy your camera 答案：C解析:考查点：宾语从句。解题思路：宾语从句语序排除B,D. 根据答语排除A.（1）解方程：； （2）解方程组：