Looking out of the window, I saw the leaves by the wind and whirled into the air.
It is typical of students to stay up ________ deep into the night for the final exam.
Lenovo has brought out a new laptop ________ low cost will make it attractive to students.
Tourism, _______ it brings in money to a country, can also result in damage to the World Heritage sites there.
“Judging the voice, and not the appearance” makes the show—The Voice of China ________from the numerous other reality shows in China.
—I’ve given out.I can’t run any farther.—________, David.You can make it.