W: Why don’t you go into the room
M: Oh, my key won’t turn in the lock. Will you help me

Why doesn’t the woman go into the room()

单项选择题41().

A．difficulty
B．exactly
C．easily
D．only

单项选择题The American sleep debt (Line 1, ParA．3) is the result of ().

A. the traditional misconception have about sleep
B. the new sleep policy of the Clinton Administration
C. the rapid development of American industry
D. the Americans’ worry about the danger of sleepness