When ______ comes to research into heart disease and its effects on the body, we do not have adequate substitutes for the use of animals.
| A．that | B．it | C．this | D．what |
Some young people these days, especially the homebodies, just_____go out of their homes to experience the real world.
| A．mustn’t | B．won’t |
| C．mightn’t | D．shouldn’t |
The little girl is walking along the beach, happy and joyful, _____bending down to pick up a beautiful seashell.
| A．approximately | B．regularly |
| C．apparently | D．occasionally |
How much you are paid _____ how important you are to the company, and you’d better wait for the right occasion to ask for an increase.
| A．attaches | B．reflects |
| C．accumulates | D．conducts |
I will be surprised if you can get Calvin, who is a close-fisted man, _______these donation draw tickets from you.
| A．buy | B．to buy | C．buying | D．buys |
Now my hometown is not at all _______ a traveler who visited it ten years ago can expect.
| A．that | B．where | C．which | D．what |