______seems to be no possibility that the student majoring in liberal-arts can win the first prize in the

There ____ lots of bad information that is not suitable for teenagers on the Internet.

We often go home _____ 4:30 _____the afternoon.[ ]

How do you study _______ a test?[ ]

.______ pressure the U.S. government put on the Chinese government, China would stick to its own policy of exchange rate.