. It is only when you nearly lose someone ____________ you fully realize how much you value him.
—as your former classmate come back from the USA? —Yes, he ____ there for eight years.
____ is no doubt ____ our class will win the first prize in the final match. A, It; whether B. There; that C. It; that D. There; whether
Although he knew little about the large amount of work done in the field, he succeeded ________ other more well - informed experimenters failed.
—Is the experiment easy? — ________ . I’ll just do my bit.
Apples are usually sold by ________ weight and eggs are sometimes sold by ________ dozen.