However, at times this balance in nature is disturbed, _______ a number of possibly unforeseen effects.
| A．resulting from | B．resulting in |
| C．having resulted from | D．having resulted in |
There was no taxi that day and I could do nothing but___there for another night
| A．stay |
| B．to stay |
| C．staying |
| D．having stayed |
The problem is___but easy.I can’t work it out
| A．anything |
| B．something |
| C．nothing |
| D．everything |
The number of guests invited to the party___fifty,but a number of them ___absent for different reasons,which made him very disappointed
| A．were;was |
| B．was;was |
| C．was;were |
| D．were;were |
Animals often seem to know___that an earthquake is coming,and they show their fear by acting in strange ways
| A．in order |
| B．in effect |
| C．in advance |
| D．in practice |
How close parents are to their children has a strong___on the character of the children
| A．affect |
| B．effect |
| C．power |
| D．control |