III. Write the correct sentences with the “adj+ to V” structure, using the words or phrases given: 1. She/ glad/ receive/ her father’s letter. 2. I/ sorry/ hear/ the news. 3. Your old friends/ surprised/ see/ you/ again/ after a long time? 4. It/ difficult / open/ the suitcase. 5. It/ not/ safe/ drink/ water/ the river/ directly. IV. Write the correct sentences with the “adj + a noun clause” structure, using the words or phrases given: 1. I/ delighted/ you/ get/ good results. 2. I/ glad/ you/ like/ our food. 3. We/ afraid/ have /no news/ for you. 4. I/ happy/ we/ can get/ tickets/ concert/ tomorrow night. 5. It/ strange/ Chinese/ not very difficult/ learn.