He has ________ in touch with his foreign friends for many years.
A：kept
B：had
C：keep
D：have
给加横线的字选择正确的读音。
城市（shì sì）____曲尼（lí ní）____ 献血（xuè xiě）____
帮助（zù zhù）____营养（yín yíng）____ 汉族（zú zhú）____
