The problem with being a time waster is _____the online game playing often spills over into the periods of time that should be productive.
A. what B. which C. that D. whether
The Internet is increasingly accessible at school and at home. _____many parents and teachers are sometimes not as prepared as we should be to warn children about Internet threats.
A. Actually B. Generally C. Surprisingly D. Unfortunately
People of different countries and regions, different nationalities and cultures have formed with solidarity an Olympic family, ______they have deepened understanding and enhanced friendship.
A. when B. which C. that D. in which
It is said that Chinese students tend not to challenge authority or _____different opinions and prefer to accept other’s views.
A. speak B. distinguish C. say D. air
If there is an intruder _____the campus, students should be _____through an announcement, ______teachers should lock their classrooms to keep the children safe.
A. in, warned, after that B. at, warned, before which
C. on, informed, after which D. in, informed, before which
Leaders of the BRIC countries-----Brazil, Russia, India and China----_______their second summit on Friday. President Hu Jintao then returned home to help direct relief work ______the deadly earthquake in Qinhai.
A. left, to follow B. concluded, following
C. had left, following D. had concluded, followed
