When the father heard from his son from abroad, he became ________.
| A．exciting | B．happily | C．happiness | D．excited |
The boy is _________ young to know ________.
| A．so; what to do | B．too; how to do |
| C．so; how to do | D．too; what to do |
---- What’s wrong with him?
---- He doesn’t feel very well. The doctor _______ just now.
| A．looked him over | B．looked him up |
| C．looked after him | D．looked for him |
When you are planting trees, the trees ________ straight in the hole.
| A．must put | B．must be put | C．are putting | D．is put |
I was about to park my car when a policeman stopped me. He pointed to a sign “________”.
| A．EXIT | B．NO PHOTOS | C．NO PARKING | D．NO SMOKING |
Jim is a nice boy ________ likes helping others.
| A．which | B．who | C．whose | D．when |