A.spent
B.cost
C.took
D.finished
1． He used to _______in the sun，but now he is used to _______at night．A． read ; readB． reading ; readC． read; readingD． reading; reading
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23． How many hours of sleep is good for students' health?A． Less than 9 hours．B． Over 9 hours．C． Only 9 hours．D． 7 hours．
He stopped_____ homework when dinner was ready.A. to doB. doC. doing
There is still a lot of work _____ on teacher training.A.to doB.to be doneC.doing
I prefer _________ a book to _________ a movie.A.reading ...to watchB.to read ...watchingC.to read ...watchD.reading ...watching
He is () ice hockey.A、goingB、playingC、doing
在主线程中启动一个子线程执行reading函数。 import threading import time import random def reading（): for i in range（10): print（"reading",i) time.sleep（random.randint（1,2)) _______________________________ r.setDaemon（False) r.start（) print（"The End")A．r=threading.Thread(reading)B．r=threading.Thread(target=reading())C．r=threading.Thread(target=reading)D．r=Thread(target=reading)
