How will the boss be back?—In these days.[ ]

Can you give me a hand?—Sorry, I can’t help you do this because it is ________my ability.

.One advantage of eating a balanced breakfast is _____ it can keep you energetic throughout the day.

Mr. Black is not only strict _____his work but also is strict ____his children.[ ]

Please call me _____ 123-456.[ ]