The university estimates that living expenses for international students ________ around $8,450 a year. which ________ a burden for some of them.
| A．are；is | B．are；are |
| C．is；are | D．is；is |
— Did you know any French before you arrived in Washington?
— Never ______ it, actually.
| A．had I learned | B．have I learned |
| C．I learned | D．was I learning |
Only after her mother came to help her for the first few months _____ to begin her propjet.
| A．was she allowed | B．she was allowed |
| C．did she permit | D．she permitted |
At no time the rules of the game. It was unfair to punish them.
| A．they actually broke |
| B．do they actually break |
| C．did they actually break |
| D．they had actually broken |
—Is everyone here?
—Not yet. Look, there _______ the rest of our guests!
| A．come | B．comes |
| C．is coming | D．are coming |
_______ about the economic crisis that he decided to look for more information about it.
| A．So curious he was | B．So curious was he |
| C．Such curious he was | D．Such curious was he |