1. —Would you please tell me ________ next?
    —Think it over. You’ll find a good way.
   A. when to do B. how to do C. what to do D. where to do
2. His parents often encourage him ________ hard.
   A. work B. working C. to work D. works
3. —John, my computer doesn’t work.
    —Why not ask Mr Liu ________ it?
   A. to buy B. not to but C. to check D. not to check
4. —What’s your plan for the summer holidays?
    —I’ve no idea, but I’ve decided ________ at home and have a good rest first.
   A. stay B. to stay C. stayed D. staying
5. We are going for a picnic tomorrow. I’ll call Wendy to make sure ________.
   A. why to start B. when to start C. what to start D. which to start
6. —My brother’s ill in hospital. —I’m sorry ________ that
   A. hear B. hearing C. heard D. to hear
7. Could you tell me if the plan includes ________ the Summer Palace?
   A. the visit B. visiting C. for us to visit D. for our visiting
8. Last week our geography teacher told us ________ more information about how to protect the environment.
   A. get B. got C. to get D. getting
9. All the hats look beautiful. I don’t know ________.
   A. how to choose B. where to choose C. which one to choose
10. Last week I met my old friend Li Ming but I forgot ________ him for his telephone number.
   A. ask B. asking C. and ask D. to ask
11. My mother asks me ________ TV before finishing my homework.
   A. not to watch B. not watch C. not watching
12. The shutes haven’t decided ________ to go there for a field trip this weekend.
   A. how B. why C. where D. what
13. Tell him ________ tomorrow, OK?
   A. come B. to come C. comes D. is coming
14. The young soldier really doesn’t know ________ to stop the baby from crying hard.
   A. what to do B. how to do C. when to do D. were to do
15. —How do you feel when you watch the national flag go up?
      —It makes me ________ very proud.
   A. felt B. to feel C. feeling D. feel