—He should have come to join in the thorough cleaning.
—He ________, I think. It's not his turn.
| A．needn't have to | B．needn't have | C．didn't have to | D．doesn't need to |
_______we are worried about is that air pollution is becoming much heavier in Han Dan.
| A．It | B．What | C．Why | D．Which |
Thanks to modern technology which has now broken the law of seasons, farming is no longer _______ weather and temperature.
| A．at the mercy of | B．in the charge of | C．in the name of | D．in view of |
While there are clear signs of a _______ recovery in the global economy, the country still faces a very difficult situation.
| A．formal | B．raw | C．modest | D．thorough |
Simon has lived in Spain for more than 10 years, but _______ enough, he can’t speak a word of Spanish.
| A．personally | B．curiously | C．unfortunately | D．initially |
Many parents prefer kindergartens to spend more time teaching math and Chinese to help their kids _______ an early lead in primary school performance.
| A．bring up | B．take up | C．build up | D．add up |