_______ we are sure about is the need to prevent children from being spoiled.
—Why.Jack, you look so tired!—Well.I the house and I must finish the work tomorrow.
To learn English well, we should find opportunities to hear English as much as we can.
After the fierce competition, the students were taken to their camp, _____ they would rest for next round.
It was never clear _____ the man hadn't reported the accident sooner.
—How do you find your new pen?—Wow, ______, so it’s really worth the money I paid.