.
.Rather than ______ at home , I prefer to go sightseeing in ___________.
| A．stay; so suuny a day | B．to stay; so a suuny day |
| C．stay; how sunny a day | D．staying; such a sunny day |
China’s new food law provides for a food recall system _______ producers have to stop production if their food isn’t up to standards.
| A．where | B．that | C．when | D．which |
Can you imagine that rats eat 40 to 50 times _______.
| A．by weight | B．their weight | C．in weight | D．of their weight |
How long do you think _______ the computer company turns out a new product?
| A．it will be that | B．will it be until | C．will it be since | D．it will be before |
---Hello. May I speak to Bill, please?
---- ________.
| A．Bill speaking | B．I’m Bill | C．You are speaking to Bill | D．I’m speaking |
--- Good morning. How much should I pay for these books ________ to Alabama?
---- Hm, about ten dollars.
| A．to be sent | B．being sent | C．sent | D．having been sent |