The Great Wall travel _______deep valleys, ________deserts and ________mountains.
A. over, across, through B. through, over, across
C. across, through, over D. through, across, over
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
