He _____ have completed his homework; otherwise, he would have been plying football with others. [ ]

The boys and girls were happily making a snowman, _______ with cold.

Mike’s training for our school footballteam ______ a lot of his free time.

Tony ____ a letter to his teacher last night.

________ by the heavy snowfalls, Chenzhou, a city in South China, was cut off from the outside,________ water and electricity shortage[ ]