His new appointment takes _____ from the beginning of next month.
| A．place | B．effect | C．post | D．office、 |
There are many pine trees on ___ of the street.
| A．every side | B．neither side | C．both side | D．either side |
His father feels ___ his duty to help others.
| A．this | B．it | C．that | D．what |
I don’t think this question is worthy ___.
| A．to consider | B．to be considered | C．considering | D．of considering |
There were three ___ eggs in the basket.
| A．dozen | B．dozens | C．dozens of | D．dozened of |
The earth is 49 times ___ the moon.
| A．as bigger as | B．so big as | C．the size of | D．of the size of |