Many provinces have been hit with smog. If _______ unsolved, the problem may lead to more serious results.
| A．having left | B．to leave | C．left | D．leaving |
I have been to many hotels but none of them can________this one for good service.
| A．match |
| B．suit |
| C．fit |
| D．catch |
He________the old lady________buying the fake stamp.
| A．frighten; into |
| B．frightened; to |
| C．frightened; into |
| D．frightened; of |
These two are well________in strength.
| A．fitted |
| B．suited |
| C．equal |
| D．matched |
At the________news, the________boy couldn't move or cry.
| A．frightening; frightening |
| B．frightened; frightened |
| C．frightening; frightened |
| D．frightened; frightening |
This is a matter of________importance I think.
| A．especial |
| B．fairly |
| C．rather |
| D．special |