Professor Hunter was soon told ____he discovered was not important to them.
| A．why that | B．why what | C．that why | D．what why |
The two boys fought and fought until one_____________.
A. gave up B. gave in C. gave away D gave off
What an important role the Internet _____ in our life! One can hardly imagine ____ life would be like without it.
| A．plays, how | B．is, however | C．uses, what | D．plays, what |
He looked at the envelope(信封) and _____ Jenny’s handwriting immediately.
| A．realized | B．recognized | C．reminded | D．remembered |
American English has changed _______ the centuries. There are several reasons _____ this.
| A．over, for | B．for, with | C．in, of | D．during, about |
The little boy fell asleep while ______TV. So his mother sent him to bed at once.
| A．watched | B．to watch | C．was watching | D．watching |