Thousands of years ago,human beings have been able to communicate
A: orally
B: using cave paintings
C: using books
D: using papyrus
A: orally
B: using cave paintings
C: using books
D: using papyrus
举一反三
- By using the methods of spectral analysis, astronomers ____ to learn a great deal about the sun.? is able;;|will be able;;|has been able;;|have been able
- If a better material______, the strength of the part would have been in- creased. A: had been used B: had been using C: being used D: using
- He tried ______ a new microphone and was able to make himself heard. A: to use B: to be used C: to using D: using
- People can communicate only in way of using language.
- You can use several ways to communicate with others except ______. A: using language B: making eye contact C: by the posture D: using ear contact