学进去

给下列单词画线部分选出正确的音标。
（____）1.thing         A. /ei/                                    B. /i/                                  C. /e/
（____）2.centre        A. /ai/                                    B. /æ/                                 C. /e/
（____）3.email        A. /i:/                                     B. /ei/                                  C. /i/
（____）4.music        A. /u:/                                   B. /u/                                   C. /ju:/
（____）5.love         A. /ɑː/                                    B. /ʌ/                                    C. /ɑ/