It has been proved ________ eating vegetables in childhood helps to protect you against serious illnesses in later life[ ]

________ do you read storybooks—I read them twice a week.

It is reported that in our country cities ________heavy air pollution that is 30 percent above the national standard or highershould try to meet standards by 2030.

Will there _______ a football match on CCTV 5 this evening—Yes. There _______ usually football matches on Sunday evenings.

Be ____, Ann! Mum is sleeping.