Generous public funding of basic science would______a good many benefits for the country's health，wealth and security.

.The river _______ in the late summer, so we could go across it easily.

Don't be joking. It's time to____________ your business. 

According to the investigation, the D-train accident resulted from the fact that the authorities concerned didn’t _________ enough importance to the safety of the signal equipment.

I hear they’ve ____ Tom because of his performance, which he didn’t mention when we talked on the phone.