________ theory，everyone must obey the rules，but ________practice，there are a few people who don’t obey the rules.
| A．In；on |
| B．On；in |
| C．In；in |
| D．On；on |
_____ is expected, according to the online survey, is that prices of the houses won’t rise any more．
A．What |
B．It | C．As | D．Which |
—Can I pay the bill by check?
—Sorry，sir．But it is the management rule of our hotel that payment _______be paid in cash．
| A．will | B．can | C．should | D．shall |
—How much sugar did you put in my coffee? It tastes so bitter．
—I’m sorry to say that there’s ________left．I’ve forgotten to buy ______on my way home．
| A．nothing；it | B．something；anything |
| C．none；some | D．no one；some |
—The dumpling is very delicious! Thank you for inviting me to eat．
—______．I’m glad you enjoy it．
| A．All right． | B．Really? | C．Never mind． | D．Don’t mention it． |
—Would you mind giving your advice on how to improve our business management?
—If you make _____most of the equipment，there will be _________rise in production．
| A．不填；不填 | B．the；a | C．不填；a | D．the；不填 |