What are the missing letters in these words? H

What are the missing letters in these words? H

[style]2[/style] [question] [{ 'title': 'What is the missing letter?', 'image':"https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjEeZA_rZIz6cVQ-c3mWIoTrCN37Vnsx4fl5wVPyCRVE4tEEmVIP3-8XU_A5B-_PrCZk3C3Q3M9OtFMgVCZ53LnUOKHEAFZoI4Jau0TChUsDP_w4A1Qpmnq5k3VIqRVT-3sXm-bGQWqDT6gV9gklB_m2MCfXG4laRGIfLbhYY-RhYlq0BzAJU6yPClS/s600/1.jpg", 'answer': [ "__H", "A", "E", "C" ] }, { 'title': 'What is the missing letter?', 'image':"https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiHxgkpsY1tuZr4u_6gIWN6RJ2jOgu7vdfrM4f-Bobo1tsq7rbe6yfsnZY73ICEbowqk0Bf_nbmFnPdMnEtPfF97ilpG0i4F3m16zKVScVDdkipZnzMNqTd1oFvOQGamki1gF2dJBEpZnAvNXBt2ifKLhiE5W6OdWNJtiFFvHSsUQ0gy-4cD5P3Tzs2/s600/2.jpg", 'answer': [ "E", "__O", "A", "B" ] }, { 'title': 'What is the missing letter?', 'image':"https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgPDfMn16a5ve9M3R2UDpkSYDdZWUVNY92imnhEuoNkqvYSnrELp_A-ZECyzDj4ze4Yi2nLKWB6k5-r9mAobHBsHfu9HpUdtn0X_wBA2grPZAyB3QdEYHUnsrl9hvPDRijqJclVkerhRH7kkL0n4RmH04vGxmibU4EjiERfeNfIjP4aC3eRs_DaM1WK/s600/3.jpg", 'answer': [ "E", "O", "__T", "B" ] }, { 'title': 'What is the missing letter?', 'image':"https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjRFfaV8xZdLrhFoEQmUt_JESFzSXxOml7XVrvQIVexHwz41sBAyr-GseyzvLgwlmaBE77zBoO4UlcPQl_1Enc5aHvCynykwGYRpK4Vqor3chRTF7nScWtSj66H-oYL87KuBhF5wb5crtqJwaSpNHUtf7kwLdwvE0O3Xqf2U6BfwhYNvGTwi477FB2j/s600/4.jpg", 'answer': [ "E", "O", "C", "__R" ] } ] [/question]