In ______most countries, a university degree can give you ______ flying start in life.
| A．the; a | B．the; 不填 | C．不填; 不填 | D．不填; a. |
After the disaster, the first thing the local government did was to provide _____for the homeless families.
| A．occupation | B．accommodation | C．equipment | D．furniture |
Most scientists seem to agree that ______ certain limit should be set on _______ consumption of cars to ease air pollution.
| A．a; the | B．/; the | C．the; / | D．the; the |
Helen devoted herself ________to her research and became a top scientist in the field of applied physics．
| A．seriously | B．extremely | C．entirely | D．strictly |
Vitamin D helps our bodies make a special chemical，and this special chemical, ______
affects our brains，making us feel happy．
| A．in turn | B．in particular | C．in advance | D．in short |
Everyone must have known the death of the waitress, __________?
| A．must they | B．mustn't they | C．haven't they | D．have they |