The monument was built in honor of the explorer who was believed _____ the river.
| A．to have discovered | B．to have been discovered |
| C．to discover | D．having been discovered |
What he wants to tell us is that it’s three years _______ he moved here .
| A．that | B．when |
| C．since | D．before |
National parks are important for preserving many animals, which would _______ run the risk of becoming extinct.
| A．instead | B．somehow |
| C．therefore | D．otherwise |
We will _______ to Egypt for sighting until the situation there become stable.
| A．put down | B．put off |
| C．put out | D．put up |
Some villagers reported a huge snake, _______ over two metres long, was found dead in a nearby cave.
| A．measured | B．being measured |
| C．measuring | D．to be measured |
Following the decline in house prices in many small and mediun-sized cities, there are now signs _______ home prices in majors cities may also be set for a slide.
| A．which | B．that | C．how | D．what |