— David, keep ______ in mind that you have to be home by 10 o'clock.
— OK, Mom, I will.
| A．/ | B．me | C．this | D．one |
Yesterday she sold her car, ______ she bought a month ago.
| A．when | B．where | C．that | D．which |
The Science Museum, ________ we visited during a recent trip to Britain, is one of London’s tourist attractions.
| A．which | B．what | C．that | D．where |
By nine o’clock, all the Olympic torch bearers had reached the top of Mount Qomolangma, _______appeared a rare rainbow soon.
| A．of which | B．on which | C．from which | D．above which |
Today, we’ll discuss a number of cases beginners of English fail to use the language properly.
| A．which | B．as | C．why | D．where |
After gradutation she reached a point in her careet she heeded to decion what to do.
| A．that | B．what | C．which | D．where |