What’s ______population of China—China has_____ population of 1.3 billion.

More ________ information is needed to help us work out the real situation.

.The number of deaths from heart disease will be reduced greatly if people _______ to eat more fruit and vegetables.

Is Jack on duty today — It ________ be him It’s his turntomorrow

ooked everywhere, but I haven’tfound any black ink.—-Then, I’m afraid there is ________left.