'Exert' means to apply force on influence over something else, this can be in a negative or positive way. In this quotation, it means that language, if used correctly, has the ability to express a 'hidden power'. It's also worth mentioning that the simile is relevant as the moon has an influence on the level of tides on Earth.
Answer:
Mrs Ramachandran suggested children whether they could keep a control over what they spoke them would be able to avoid many awkward situation.
Answer:
I was so late this morning. By the time I got to work, I missed the whole meeting.
Explanation:
The sentences are in past tense, so you need to change those words to past tense.
I was so late this morning. By the time I ...........(get) to work, I.........(miss) the whole meeting
Past tense of get is got and past tense of miss is missed.
I was so late this morning. By the time I got to work, I missed the whole meeting
The verb in this sentence is "watch"!!