No ready technical data was ______________，but we managed to go without．
| A．believable | B．convenient | C．available | D．accessible |
28．— Is Mike going there by bus?
— He ought to, but he ________ not. He likes riding his bike.
| A．must | B．may | C．need | D．Can |
27．The boy _______ in the bed ______to his friend that a cock laid an egg yesterday.
| A．lay; lay | B．lying; lay | C．lying; lied | D．lied; lying |
26．— Andy promised to attend your wedding today last night.
— Yes, I believe he will ________.
| A．tell white lies | B．change his mind | C．keep his word | D．break his word |
25．________ of such a long movie, the little boy turned to his favourite music.
| A．Having tired | B．Tiring | C．To tire | D．Tired |
24．The Dragon Boat Festival had its____as an event in memory of Qu Yuan, a great poet in China.
| A．reason | B．explanation | C．origin | D．Resource |