It is not easy ____ a foreign language well.
举一反三
- It is not easy to learn a foreign language well, but if a student _______, he will succeed in the end. A: hang on B: hang about C: hang on to D: hang up
- It will us several years to learn a foreign language well.
- To learn a foreign language well (be) ____not easy.
- __________ a foreign language is not an easy thing. A: To master B: Master
- He'll do his best ______ （learn）a foreign language well．