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Please don’t do anything harmful ________ our nature, or we humans will have no ________ each other.
| A．to, fun about | B．for, fun with | C．for, fun about | D．to, fun with |
I______ him the money but he didn’t tell me he needed it．
| A．should have lent | B．must have lent |
| C．need have lent | D．could have lent |
Volunteering gives you a chance _______ lives，including your own．
| A．change | B．changing |
| C．changed | D．to change |
The news came as no surprise to me．I _____ for some time that the factory was going to shut down．
| A．knew | B．had known |
| C．have known | D．know |
Dan Brown，_____ author of The Da Vinci Code，is _____ very famous American writer．
| A．a; the | B．the; the |
| C．the; a | D．a; a |
Jack，it’s too hot here．______ I open the window？
| A．Shall | B．Will | C．Should | D．Would |