Answer:
"It was still hot, and everything was very strange."
Step-by-step explanation:
If you read it out loud to yourself and think about it, using process of elimination this answer makes the most sense. "We called Mr. Kleiman to ask if he could come by that evening" is a not strange sentence and nothing about it is abnormal in any way. "Miep arrived and promised to return later that night." Is also not an abnormal sentence in any way, shape or form. As, this sentence could mean anything and it doesnt have to mean something suspenseful. "Father finally came home around five o'clock" Is finally, again, not anything strangely descriptive about it and in any sense could mean anything. "It was still hot, and everything was strange." Just sounds and fits right, dont you agree?