We believe ________ we can find out the wonder drugs to H7N9 bird flu.
| A．when | B．whether | C．what | D．that |
We have decided to fulfill the task in time, difficulties we may meet with.
| A．no matter how | B．however | C．whatever | D．whichever |
My parents don’t think I should take a course on law, yet I am determined to take .
| A．it | B．one | C．that | D．the one |
Please do me a favor, —the box upstairs.
| A．carry | B．to carry | C．carrying | D．having carried |
We know that the Black Sea, one thousand years ago, was a fresh water lake about ________ and unconnected with the Mediterranean.
| A．its two thirds present size | B．two-thirds size of the present |
| C．its two-thirds of the present size | D．two- thirds its present size |
— I’m sorry to hear that some villagers got disabled in the earthquake.
— That’s too bad, but _______.
| A．all is well that ends well | B．the darkest hour is nearest the dawn |
| C．where there is life, there is hope | D．it is good to have friends in trouble |