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.)