What ______ had Bob walked farther, as far as the river bank?
| A．would happen | B．could happen | C．would have happened | D．needn’t have happened |
The little boy who got lost decided to remain ________ she was and wait for her mother.
| A．what | B．how | C．who | D．where |
Some people ________ not have plans yet for New Year’s Eve, but others know exactly what they will be doing.
| A．can | B．must | C．need | D．may |
________ beyond words, the businessman agreed to donate some money to help the sick.
| A．Moving | B．Moved | C．Being Moved | D．To moved |
The boys followed the marks that they ________, until finally they found their way back to the campsite.
| A．left | B．have left | C．had left | D．have been left |
________ their heavy load, the two brothers walked along the river bank.
| A．Carrying | B．Carried | C．To carry | D．Carry |