Questions 6 and 7 are based on the following news. The highest oil price in history was ______ a barrel.

A．she was very kind and understanding.
B．she advised Raul to ask more questions in class.
C．she suggested Raul share a house with British students.
D．she spared time to practice English with Raul.

A．They were spotted from Florida to Virginia.
B．They came with heavy rain and hail.
C．One severe tornado was reported in North Carolina.
D．An industrial building fell down due to the tornado.