I’m sorry to tell you that you made a mistake in your test.— How can that be? I did it _______ in class.

You are not good at English,but you can’t_______.

Though difficult, I ________ him find a job, which made him very pleased.

so many hardships, the scientist hismotherland at last.

(2013·皖南八校联考)________ here yesterday，he could have seen Jackie Chan.