The plane is ________ to arrive at 8 p．m.，but the foggy weather makes it hard to say.
| A．sure | B．possible |
| C．owing | D．due |
The building the windows are bright at night is our school library.
| A．that | B．which | C．whose | D．of which |
It was not until dark _____ he found _____ he thought was the correct way to solve the problem.
| A．that; that | B．that; what | C．when; what | D．when; that |
_________ this is the biggest mistake we have made.
| A．In a way | B．In this way | C．To the degree | D．In a degree |
It i s the second time that the poor area_______.
| A．had been visited | B．has been visited |
| C．was visited | D．is visited |
In modern times, the development of science is ________ .
| A．thought well of | B．thought highly |
| C．highly thought of | D．well thinking of |