---Excuse me, please look at the sign “No Smoking”.
---Sorry, I _____.
| A．don’t notice it | B．am not noticed | C．didn’t notice it | D．wasn’t noticed |
________good advice! It’s so helpful to us.
| A．How | B．How a | C．What | D．What a |
—Mary was heard_______ just now. What happened?
—John was telling a joke.
| A．cry | B．to cry | C．laugh | D．to laugh |
It is silly ______ you to give up ______ to America for further study.
| A．for, to go | B．for, going | C．of, to go | D．of, going |
Would you like to __________us in watering flowers?
| A．take part in | B．come | C．attend | D．join |
I have decided ________her for her mistake____ everyone makes mistakes in life.
| A．forgiving; but | B．to forgive; when |
| C．to forgive; since | D．forgiving; until |