Краткое пояснение:
The phrase 'This time next month' indicates a future continuous action. The future continuous tense ('will be + -ing') is used to describe an action that will be in progress at a specific time in the future.
Варианты ответа:
- a) will be orbiting
- b) are orbiting
- c) will have orbited
Ответ: a) will be orbiting