°ËÄ꼶ϲáÓ¢ÓïÓï·¨Á·Ï°
¡¡¡¡Ò»¡¢±öÓï´Ó¾äÁ·Ï°Ìâ
¡¡¡¡I£®´ÓÏÂÁÐA¡¢B¡¢C¡¢DÖÐÑ¡ÔñÒ»¸öÕýÈ·Ñ¡ÏîÌî¿Õ¡£
¡¡¡¡1. I don't know _________ he will come tomorrow. _________ he comes, I'll tell you£®
¡¡¡¡A. if; Whether B. whether; Whether C. if; That D. if; If
¡¡¡¡2. I don't know _________ the day after tomorrow.