The researchers concluded that the more time children spend watching television,________.(他们的学习成绩就越差)
My father (read) __ your thesis all the afternoon.
__ (国王释放犯人的决定) surprised all the people.
Hadelectroniccomputersnotbeeninvented,__(很多关于太空飞行的问题不能解决了).
What did customers complain in the survey?
It took______to settle their complaints.
What can you do if you are not sure about the postage?
Ask ______.