This is the only one of these books that ______worth reading.
| A．has | B．have | C．is | D．are |
181. The old man told us most of the story, but _______ the part about the murder.
| A．kept up | B．kept back | C．kept out | D．kept down |
180. The monkey came down and _______ onto the elephants back.
| A．jumped | B．walked | C．flied | D．Marched |
179. Please don’t _____ a joke on the disable. We should try our best to help them.
| A．carry | B．play | C．get | D．Do |
178. My brother has _____ the army for more than five years.
| A．joined | B．been in | C．joined in | D．taken part in |
177. You should work hard. If you do so, you are expected to _______ the club.
| A．join | B．join in | C．take part in | D．Task |