Mary kept weighing herself to see how much ______ she was getting.
| A．heavier | B．heavy | C．the heavier | D．the heaviest |
If you want to sell your product you must _____ it.
| A．advertise | B．advertise for |
| C．advertise on | D．advertise to |
New medicines and instruments ______ every day to extend life.
| A．develop | B．are being developed |
| C．are developing | D．have developed |
A red sky in the morning ______ to be a sign of bad weather.
| A．says | B．is saying |
| C．has said | D．is said |
Hundreds of jobs _______ if the factory closes.
| A．lose | B．will be lost |
| C．are lost | D．will lose |
“Look！ Everything here is under construction.” “What is the small building that ______for？”
| A．is being building | B．has been built |
| C．is built | D．is being built |