— Shall I give you a hand with this as you’re so busy now?
— ____.
| A．You’re welcome | B．It’s all right | C．You’re kidding | D．It’s so kind of you |
I was cooking in the kitchen when Dora returned, her face _________with mud and sweat.
| A．covering | B．having covered |
| C．covered | D．to cover |
The factory produced many famous cars, none of _________ shippedto foreign countries.
| A．them | B．which |
| C．it | D．what |
He held out his hand, but the lady refused to take it, which made him feel very _________.
| A．awkward | B．comfortable |
| C．cheerful | D．curious |
Due to lack of protection, the hills which used to be covered withgreen trees are now mostly _________
A. blankB. bare
C. vacantD, hollow
It is generally agreed _________ education is vital for the development of individuals and the well-being of society.
| A．if | B．because |
| C．when | D．that |