Nobody but doctors or nurses and those _______ by Dr. Hu _______ to enter the patient’s room.
| A．invited; is allowed | B．inviting; are allowed |
| C．are invited; is allowed | D．invited; are allowed |
---Jack was late for Mr. Smith’s oral class this morning.
---______? As far as I know, he never came late to class.
| A．How come | B．So what | C．Why not | D．What for |
______ both sides accept these terms will everlasting peace be established in this region.
| A．Unless | B．As long as | C．If only | D．Only if |
I’ve already told you that I’m going to buy it, ________．
| A．how much does it cost | B．no matter how it costs |
| C．however does it cost much | D．however much it costs |
The manager discussed the plan that they would like to see ______ the next year.
| A．carry out | B．carrying out | C．carried out | D．to carry out |
Gun control is a subject ______Americans have argued for a long time.
| A．of which | B．with which | C．about which | D．into which |