A．impossibleB．incapableC．unableD．proficient
A: impossible
B: incapable
C: unable
D: proficient
A: impossible
B: incapable
C: unable
D: proficient
举一反三
- It is almost impossible to become proficient in speaking a foreign language ________ you use it frequently. A: since B: if C: except D: unless
- The full impact of the recent tsunami caused by an earthquake in Japan is ______ to predict. A: unlikely B: impossible C: unable D: incapable
- Jack is always late for appointments. He seems to be ______ of leaving the house on time. A: unable B: impossible C: incapable D: unaware
- be proficient in 英译汉
- Pleasewriteoutthewordfamilyof"proficient"n.__________