— I called you yesterday evening, but there was no answer. — Oh, sorry, perhaps I a news paper outside my bedroom. A. read B. am reading C. was reading
根据句意,用所给单词的适当形式填空。 Columbus made the ___________ (discover)of the new land. The __________mother thanked the policeman again. (thank) We should stop using p___________ bags to protect the environment. Last night his _________ (ill) kept him awake. Between the two buildings __________ (be) a tall tree.