How strange! These years my birthday always falls _____.
| A．on the Sunday | B．on a Sunday | C．on Sunday | D．at a Sunday |
Mr. Smith is busy these days ________ a new book on how to develop a child’s reading skill.
| A．working out | B．working on | C．working for | D．working with |
It makes no ________ to me what she says. I won’t care.
| A．choice | B．efforts | C．difference | D．differences |
Who do you think is the right person to ________ the task?
| A．undergo | B．undertake | C．understand | D．underline |
He transplanted the young tree to the park ____it was the best time for it .
| A．where | B．when | C．what | D．that |
—It is a lovely day ,isn`t it ?
— yes,______?
| A．,isn`t it ? | B．it is | C．it isn`t | D．is it |