This photo of mine was taken ____ stood the famous tower．
| A．which | B．where | C．in which | D．there |
We shall never forget the days ________ we spent playing happily together.
| A．in which | B．which | C．when | D．on which |
______ is said, the Yeti is a large, hairy animal that walks on two feet like a human being.
| A．It | B．That | C．As | D．What |
It is thought that Zheng He, a Chinese in the Ming Dynasty, may have been the first person who _____________America from the East.
A set out toB. set about to
C. set sail to D. set sail for
I don’t care ____ or not you like the plan.
| A．if | B．whether | C．that | D．how |
The old couple looked at the plane with their son on it until it was ______.
| A．at the first sight | B．out of sight |
| C．in sight | D．at the sight of |