If you feel tired and sick of fat food, that is ______ you have to go to the hospital for medical examination.
| A．why | B．whether | C．when | D．what |
Though the situation is rather serious, financial leaders are still ______ about global economy.
| A．positive | B．negative | C．active | D．passive |
Do remember to be________. We must avoid any possible risks when doing this dangerous chemical experiment—burns, poisonous gases or cuts from broken tubes.
| A．curious | B．thoughtful | C．considerate | D．cautious |
With everything she needed ________， she went out of the shop, with her hands full of shopping bags.
| A．buying | B．to buy | C．bought | D．buy |
You can use a large plastic bottle, ______ cut off, as a pot to grow flowers in.
| A．the top is | B．the top of which | C．whose top | D．with its top |
The prize of the game show is ﹩30,000 and an all expenses __________ vacation in China
| A．paying | B．to be paid | C．being paid | D．paid |