单选题The reason______I'm writing is to tell you about
单选题Greater efforts to increase agricultural
单选题I'm very keen of hearing, ______?
单选题The policemen went into action______ they heard
单选题He______be tired. He has just begun to work.
单选题______some mammals came to live in the sea is
单选题I'm sorry I can't see you immediately; but if
单选题At last she left her house and hurried to the
单选题In this experiment, they are wakened several
单选题The scheme was so impracticable that I refused
单选题This is the reason______I am not in favor of
单选题Men differ from animals______they can think and
单选题Since the matter was extremely______, we dealt
单选题A person's calorie requirements vary______his
单选题For some time now, world leaders______out the
单选题______every word of his was true, what action
单选题"May I speak to your manager Mr. Williams at
单选题I was held up by the traffic jam, otherwise
单选题It seems oil______from this pipe for some time.
单选题There is a real possibility that these animals