I will meet my uncle the morning December 21st.
| A．on, of | B．in, at | C．on, on | D．in, in |
_________ trees have been planted these years.
| A．Million | B．Millions | C．Million of | D．Millions of |
— Peter, ________ do you visit your grandparents?
— Twice a month.
| A．how long | B．how soon | C．how far | D．how often |
The girl has friends here, so she feels lonely.
| A．little | B．a little | C．few | D．a few |
Hurry up, ________ you will be late for school.
| A．and | B．so | C．or | D．but |
I was born ________ the morning ______ August 1st, 1993.
| A．in ; of | B．on ; of | C．on ; for | D．at ; of |