| I saw Mrs. Smith _____ some flowers in her garden yesterday afternoon. |
A. grows B. grew C. growing D. to grow |
| —Could you tell me _______? —In Beijing. |
A. where does he work B. when does he work C. when he works D. where he works |
| 根据句意和首字母提示，选出正确的单词完成句子。 |
| I had great d________ doing the work. A. difficult B. development C. difficulty |