He went to the boy, and _______ him on the shoulder, took him away.
| A．pat | B．patting | C．patted | D．to pat |
It had never________to him that he might be falling in love with her.
| A．taken place | B．occurred |
| C．come about | D．broken out |
Sometimes the police are not absolutely sure that someone has committed a crime，but________him of having done it.
| A．charge | B．suspect |
| C．inspect | D．doubt |
The photos on the wall________Grandma of those happy，old days when a large family lived together.
| A．repeat | B．remember |
| C．remind | D．retell |
One of the most important questions they had to consider wasof public health
| A．what | B．this | C．that | D．which |
The two sisters are twins，so it is difficult for me to ________ them apart.
| A．speak | B．say |
| C．talk | D．tell |