The lesson Mr Li gave just now was too difficult for the class to ________

look so upset, Jane _____– I have been told my father has got skin cancer

My cousin doesn’t know what to ______ at the university; he can’t make up his mind about his future.

―Mark, please don’t play basketball on the road. It’s very dangerous.― ，I’m going home at once.

So far ,we have still got no news of the missing ship.—-I’m sure we will find it one day.