He is afraid to face the difficulty he thinks he’ll have the driving test tomorrow; he finds it difficult rid of the worries．
| A．passed；got | B．passing；to get |
| C．to pass；getting | D．in passing；in getting |
The little boy is dirty from head to foot because he ___ in the mud all morning.
| A．has played | B．is playing | C．has been playing | D．was playing |
Her ________ look suggested that she was very _______ with the answer.
| A．satisfying；satisfied | B．satisfied；satisfying |
| C．satisfied； satisfied | D．satisfying；satisfying |
－Why didn’t Susan come to see us yesterday as she promised?
－______.
| A．She must be busy | B．She might have been free |
| C．She must have been busy | D．She can’t be free |
This book is well worth _______. Would you like to buy one?
| A．to read | B．being read | C．reading | D．to be read |
These two words are different _______ each other in spelling while they are similar ______ each other in pronunciation.
| A．from; to | B．from; as | C．with; like | D．with; to |