The boy wanted to ride his bicycle in the street, but his mother told him _______.
| A．not to | B．not to do |
| C．not do it | D．do not to |
They tried to convince her _______ his innocence.
| A．of | B．about | C．to | D．in |
We can never expect ______ bluer sky unless we create _______ less polluted world.
| A．the; a | B．a; a | C．the; the | D．a; the |
Was he sorry for what he’d done ?
| A．No wonder | B．Well done | C．Not really | D．Go ahead |
With Father’s Day around the corner ,I have taken some money out of the bank ______ presents for my dad.
| A． buy | B．to buy | C．buying | D．to have bought |
We haven’t discussed yet ______ we are going to place our new furniture.
| A．that | B．which | C．what | D．where |