— How long have you _______ this book?
— About ten days. I _______ it last month.
| A．bought, bought | B．bought, buy |
| C．had, bought | D．had, have bought |
He arrived home late _____the heavy rain．
| A．since | B．because | C．because of | D．as |
The boy is ____ of the two .
| A．thinner | B．the thinner |
| C．more thin | D．thinnest |
_____ she is only 4 years old, ______ she can plays the piano.
| A．Although, but | B．Although, / |
| C．But , / | D．and , / |
---- ______do you have sports meetings in your school ----Once a year.
| A．How often | B．How many | C．How soon | D．How much |
I don’t think it is _____ good idea to go to school without ______ breakfast.
| A．a; the | B．a; / | C．/; / | D．the; a |