Mary is my best friend. We’re all from Henan, 1. _____
    but now I live in Beijing when she lives in 2. _____
    Guangzhou. We don’t look each other very often, 3. _____
    but we’re keep in touch all the time. I often write 4. _____
    to Mary and telling her about the things that 5. _____
    are happened at my company, and she often 6. _____
    writes to me about her work. We talk on phone 7. _____
    once a week. Sometime I call her on her 8. _____
    car phone, or we send e-mail to each other. 9. _____
    We’re really luck. There are so many ways 10. ____
    we can keep in touch with each other.
    【答案解析】
    1. all改為both。指Mary和作者兩個人。
    2. when改為and或while。因為兩個分句沒有主從關(guān)系。而是并列關(guān)系，或者有對比或?qū)φ盏暮x。
    3. look改為see。因為此句意為“兩個人不能經(jīng)常見面(see)”。
    4. 去掉keep或把we’re改為we。因為keep是動詞，若不是進行時態(tài)或被動語態(tài)，動詞前不用be，但句中沒有動詞時必用be。所以去掉keep或去掉are，
    5. telling改為tell。tell和write是并列謂語。
    6. happened改為happening。因為這是現(xiàn)在進行時態(tài)。
    7. phone前加the。因為on the phone是習(xí)語，意為“用電話(交談)”。
    8. Sometime改為Sometimes。此處表示“有時候”，而不是表示“某個不定的時候”。
    9. 此行正確。
    10. luck改為lucky。用形容詞作表語。