中国大学MOOC: The most difficult thing in learning a word is _________.
举一反三
- The most difficult thing in learning a word is _________. A: its pronunciation B: its usage C: its meaning D: its spelling
- 中国大学MOOC: _______ is the most difficult of _______.
- 中国大学MOOC: “A little learning is a dangerous thing” is quoted from ______.
- What is the most difficult thing to make a business call?
- One of the most difficult tasks for foreigners in learning a new language is learning the __________ and __________ in which they are used.