. It is still unclear ______ the little boy got the CD player to work.
| A．where | B．what | C．that | D．how |
.The plane went off its_________ to keep away from the sudden storm.
| A．road | B．course |
| C．fly | D．direction |
_________was the story the boy told the reporter.
| A．What | B．All that |
| C．Such | D．So |
Greatly_________ as the leading scientist,he was asked to give lectures in many countries.
| A．respecting | B．respects |
| C．respected | D．to respect |
They are_________ to eat Chinese food though they have been in America for years.
| A．content | B．please |
| C．interested | D．fond |
If you don' t know a word, you can ________ the word in a dictionary.
| A．look up | B．look down | C．look over | D．look out |