Fill in "have to", "has to", "dod't/ doesn't have to", "didn't have to", "had to" or "won't have to". 14 l broke my tooth, so to the dentist's yesterday.

Ibroke my tooth, so i had to go to the dentist’s yesterday.

1. dear ms chan, in reply (1) to your letter of 24 april, (2) concerning the exhibition in anytown in august, we are (3) delighted to inform you that our company will be taking part in. (4) r egarding the conference, we will (5) appreciate it if you could send us details of all the delegates. we would also (5) ask you to let us have details of the equipment you need for your presentation. we look forward to (6) receiving your reply. yours (7) faithfully . 2. dear sir/madam your company has been recommended to us by a business associate and i would like to (8) enquire your translation services. my company has recently entered the export market and we need advertising material (9) translated into chinese, italian, and turkish. we would be (10) grateful if you could send us your prices and terms of (11) payment. we look forward to (12) hearing from you. yours (13) sincerely. 3. dear mr kadenza i was very (14) sorry to hear about your problems with the new super vacuum. i have investigated the complaint and i (15) regret to tell you that the problem is the result of faulty operation. i (16) enclose a copy of the inspector's report with this letter. if you require us to repair the machine, do not (17) hesitate to contact me at the number above. yours  sincerely,