__________ walk is expected to last all day, so bring __________ packed lunch.
| A．A; a | B．The; 不填 | C．The; a | D．A; 不填 |
My luggage was closely____when I entered the country.
| A．tested | B．checked | C．examined | D．opened |
Pakistan became a fully independent____after the second World War.
| A．country | B．nation | C．state | D．affair |
___ of us has a bike.
| A．No of | B．None of | C．Not of | D．Not |
When you are in the lab, you should ___ teachera’ instuctions.
| A．follow | B．give | C．receive | D．listen |
All people,they are old or young，rich or poor，have been trying their best to help those in need since the disaster
A even if B whether C no matterD however