The children ________ lost in the woods; otherwise, they would have been at the lakeside camp as scheduled.
| A．must have got | B．must get |
| C．should have got | D．should get |
crowd
| A．owner | B．flow | C．window | D．flower |
cheer
| A．machine | B．school | C．chain | D．chemist |
polish A. remove B worry C. consider D. honest
upset
| A．.usage | B．pollute | C．August | D．dusty |
If we are not _______ the progress we have made, we will have greater success.
| A．interested in | B．strict in |
| C．popular with | D．content with |