He put on a smile and said it didn’t matter，________，in fact，he cared too much about what she said.
| A．When | B．As | C．While | D．Once |
My mother suggested that she _____ me to the hospital, where I received good medical treatment.
| A．sent | B．sended | C．send | D．to send |
Mr Ma is the person _____ we learned how to write with brushes.
| A．whom | B．from who |
| C．from whom | D．from which |
The _______ boy made the police and his family _______.
| A．gone; puzzled | B．missing; puzzled |
| C．missing; puzzling | D．lost; puzzling |
He did not go to school yesterday ___________the heavy rain.
| A．because | B．because of |
| C．for that | D．why |
Tom has gone to Shanghai,_____ is in the east of China.
| A．where | B．who | C．which | D．that |