Some students think it is ___ to spend some time surfing the Internet, but we shouldn’t be too dependent on it.
It was in the small house ___ was built with stones by his father ____ he spent his childhood.
After pains-taking efforts, he eventually concluded that the principle he stuck _______ true.
“Only two centimeters higher, ______ break the world record,” encouraged the coach.
______ today, he would get there by Friday.
Hong Kong residents say they can no longer ________ the ongoing Occupy Central protests which greatly influenced their daily life and local business, and ask the protestors to withdraw from the streets.