. The river, ____ are covered with trees, is very long.
She asked the man _______ it was true he had been a soldier before.
It is said that our headmaster is going to _______ the students _______ as party members in the meeting hall next week.
—How do you like the play?—_______interesting than expected.
—Is the experiment easy? — ________ . I’ll just do my bit.
Although he knew little about the large amount of work done in the field, he succeeded ________ other more well - informed experimenters failed.