__________ is the most difficult of all thelessons.— I agree. But it’s the most interesting.

No person __________ carry a mobile phone into the examination room during thenational college Entrance Examinations．

If we want to succeed we must ____ what we do and who we are.

Our English teacher is our favoriteShe’s kind and humorous, but ________, she is strict with us.[ ]

Several students in our class areconsidering_______to the United Kingdom for further study next year