Sentence 1:

• The company is planning to implement a new set of safety rules to conform to international standards.
• "Implement" is a suitable verb here as it means to put a plan or system into operation.

Sentence 2:

• These sentences seem to be part of a conversation. Without more context, it's hard to provide a specific answer. However, possible options for the first blank could be:
  • "introduce"
  • "expose"
  • "tempt"
• For the second blank, a general phrase like "the joys" or "the wonders" could fit.

Sentence 1:

• He got up very early at 5 o'clock to do a paper before going to school.
• "Do" is a simple and direct verb that fits the context.

Sentence 2:

• First sentence:
  • At the end of the performance, the audience sprang to their feet giving the artist a loud round of applause.
  • "Round" is often used to describe a series of applause.
• Second sentence:
  • Carl could spend hours watching the horse going around in the enclosure.
  • "Around" implies a circular movement.

Sentence 1:

• When Joanne heard a strange noise upstairs she suddenly stopped and listened attentively.
• "Stopped" suggests an abrupt pause in her activities.

Sentence 2:

• First sentence:
  • In the winter, the river froze and the children enjoyed skating.
  • "Froze" is the past tense of freeze, which describes the state of water turning into ice.
• Second sentence:
  • The collected evidence clearly pointed to the militant group and the court froze its bank accounts.
  • "Froze" here means to temporarily stop a financial transaction, similar to how a river freezes.