I don't think the experiment is ______ failure. At least we have gained ______ experience.
| A．a; an | B．a; / | C．/; an | D． /; / |
---Where’s Jack? ---I think he’s still in ___ bed, but he might just be in ___ bathroom.
| A．/…./ | B．the…the | C．the…/ | D．/…the |
Alexander Graham Bell invented ___ telephone in 1876.
| A．/ | B．a | C．the | D．one |
He has got used to sleeping in ___daytime and working at ___ night.
| A．/…the | B．the…/ | C．the…the | D．the…a |
Write ___ “s” here and write ___ “h” there, please.
| A．a…a | B．an…a | C．a…an | D．an…an |
The British commander tried to make Nathan Hale ___, but he failed.
| A．turn a traitor | B．turn the traitor | C．turn traitor | D．turn traitors |