The zoo will have to close ________ the local government agrees to give extra money.
| A．until | B．when | C．unless | D．if |
—Will you please tell us how you can seize the robbers?
—I will spend a whole week ____ in your room to wait for their coming.
| A．looking | B．to look | C．looked | D．being looked |
I wish there _____ no misunderstanding on this matter.
| A．is | B．to be | C．be | D．are |
We _____ each other the best of luck in the exam.
| A．hoped | B．wanted | C．expected | D．wished |
Alexander Grantham Bell invented ____ telephone in 1876.
| A．不填 | B．a | C．the | D．one |
—You were brae enough to raise objections at the meeting. —Well, now I regret ___ that.
| A．to do | B．to be doing | C．to have done | D．having done |