一、单句语法填空
1.By now his restaurant ought be full of people.
2.What do we need (take) for the picnic?
3.His mother is ill.He (have) to stay at home to look after her.
4.You’d better (stay) at home if it snows.
5.Something terrible must (happen) if Li Chang was not coming to eat in his restaurant as he always did.
