Are two students enough to help you carry the desk?— No, the desk is too heavy. I need ______ two.

Is the woman over there Miss White? —It ______ be her. She’s gone to Hangzhou.

With help, we finished our work on time.

You seem to know much about the city.– That’s true. I _______ it four times in the last three years.

Eating _______ sweet food is not good for our health (健康).