He is only too ready to help others, seldom, ____, refusing them when they turn to him.
| A．if never | B．if ever | C．if not | D．if any |
The buildings of this style can be seen _________.
| A．all of Europe | B．all over Europe |
| C．all the Europe | D．all European |
30 % of the young trees, attacked by diseases, ________pine trees.
| A．is | B．are | C．was | D．has been |
Tomato, which used to be called “love-apple”, is not ____but ______.
| A．fruit; vegetable | B．fruit; a vegetable | C．a fruit; a vegetable | D．a fruit; vegetables |
- _______ do you have in this season?
--- You can have anything you want.
| A．What fruit | B．Which fruit | C．Which fruits | D．What fruits |
The letter _____London, May 24th, 1898 .
| A．is dated from | B．was dated in | C．dated in | D．dated from |