The correct answer is option 'D', angrily.

Explanation:
When the sentence says "He told us _____ not to walk on the grass," it means that someone instructed or advised the speaker and others to avoid walking on the grass. To determine the appropriate word to fill in the blank, we need to consider the context and the meaning of the sentence.

Let's analyze the given options:

a) Outside: This word does not fit the sentence because it does not make sense to say "He told us outside not to walk on the grass." Outside is not directly related to the action of walking on the grass.

b) Yesterday: This word also does not fit the sentence because it does not provide any information about the instruction or advice given. It is unrelated to the action of walking on the grass.

c) Never: This word could fit grammatically, but it does not convey the meaning intended by the sentence. Saying "He told us never not to walk on the grass" would imply that the speaker should always walk on the grass, which contradicts the original purpose of the instruction.

d) Angrily: This word fits the sentence correctly. When someone tells others not to do something angrily, it implies that the person giving the instruction is upset or frustrated. So, the sentence "He told us angrily not to walk on the grass" indicates that the speaker and others were strongly advised or scolded for walking on the grass.

In conclusion, the most appropriate word to fill in the blank is "angrily" because it aligns with the context and conveys the meaning intended by the sentence.

Answer: d) Angrily

Explanation: because the other three answers do not make sense