Fill in the blanks with to be (to), to have (to) or must using the correct form of the infinitive.
1. I did not know who ... (to be) my travelling companion. 2. According to the state plan, many new dwelling houses ... (to build) this year. 3. We … to work) hard to achieve good results. 4. I think we ... (to, drop) anchor in that bay until the storm quiets down," the captain said to his mate. 5. … (to say) your behaviour has been far from straightforward. (Sh) 6. "Mabel has gone," Lanny said in a flat, impersonal voice. The old woman went back to her chair and sat down heavily. "It … (to be). Where did she go, son?" (Ab) 7. "Have you been studying much law lately?" I asked, to change the subject. "Oh, Master Copperfield," he said with an air of selfdenial; "My reading ... hardly (to call) study." (CD.) 8. Sartorius. If I give in now I … (to give in) always. (Sh.) 9. Mrs. P e a r с e. What … (to become) of the girl? ... she (to pay) anything? (Sh.) 10. This is serious; you … (not to joke) about it (Sh.)

1. I did not know who was to be my travelling companion. 2. According to the state plan, many new dwelling houses are to be built this year. 3. We have to work hard to achieve good results. 4. I think we have to drop anchor in that bay until the storm quiets down," the captain said to his mate. 5. Your behaviour is said to have been far from straightforward. 6. "Mabel has gone," Lanny said in a flat, impersonal voice. The old woman went back to her chair and sat down heavily. "It had to be. Where did she go, son?"  7. "Have you been studying much law lately?" I asked, to change the subject. "Oh, Master Copperfield," he said with an air of selfdenial; "My reading is hardly to be called study." (CD.) 8. Sartorius. If I give in now I will have to give in always. (Sh.) 9. Mrs. P e a r с e. What has become of the girl? Did she have to pay anything? (Sh.) 10. This is serious; you are not to joke about it (Sh.)