21. ________ the deaf children, the young lady has little time to care for her own daughter.
A. Devoted to teach B. Devoted herself to teach
C. Devoting herself to teaching D. Devoting to teach
22. ---I’d like to go on a journey to Africa because I can see a lot of wild animals there.
---Yes, it’s a region ___________ in wildlife.
A. enough B. abundant C. luxurious D. splendid
