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.)