. It is usually warm in my hometown in March, but it _________ be rather cold sometimes.

The teacher ___________his students to work hard.

It’s amazing that Beijing and Zhangjiakou have won the bid for the 2022 Winter Olympics!—Sure it is! The government ________ have made great efforts!

In business negotiation, an _______ attitude may result in breaking the relationship with our partner while a too frank communication may bring a company into an unfavorable situation.

My parents often tell me __________ too much junk food because it’s bad for my health.