-- Do you have any more bags of this size?
-- I’ sorry we’ve sold ________ but this one.
| A．any | B．some | C．all | D．none |
The best times to visit Shangri-la are spring and autumn ___ the temperature is at its mildest.
| A．where | B．on which |
| C．when | D．in that |
You have to wear a helmet and a life jacket for protection, just ___ you fall into the water.
A. in caseC. unless
C. though D. as
Since we ____ for almost two weeks, I’ll need to buy a large backpack in advance to carry my supplies of food and water.
| A．have walked | B．will be walking |
| C．have been walking | D．walked |
Below ____ an article about advertisements ____ by a student for her English project.
| A．are; writing | B．be; to be written |
| C．being; written | D．is; written |
_____ an ad does not lie, it does not mean it is altogether innocent.
| A．Even if | B．As if |
| C．If | D．Now that |