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 |
— Oh,you haven’t read my e-mail?
—Sorry,I haven’t had any____ to the computer these days.
| A．aids | B．basis |
| C．access | D．beliefs |
____house in this district has heating in winter seasons.
| A．No any | B．Not every |
| C．Not all | D．All not |
I have been fortunate to find a career that I love and ____ ,I can walk to work within 10 minutes.
| A．what is more | B．in other words |
| C．as a result | D．on the contrary |
_____the climate changes so much has caused many discussions among the scientists.
| A．What | B．Which | C．When | D．That |
I tried more than once to persuade the taxi
driver to slow down,but he just ____listen.
| A．shouldn’t | B．mustn’t | C．couldn’t | D．wouldn’t |