Cable TV began in 1948 in the USA, but it took 50 years________ 66 percent of American households had it.A. before B. after C unless D. since
----How often do you visit your grandma in the village? ----I feel ashamed.______________.
___________ by parents does great harm to the kid’s mental health.
The door and the windows were all closed and there was no ______ of forced entry.
Haibao stands steadily on the big feet and holds the world with big arms, ______shows China has the ability and faith to host a successful Expo.
Millions of Chinese patients expect China's medical care system ______ next year.