Sometimes proper answers are not far to seek ________ food safety problems.
| A．in | B．to | C．on | D．after |
What I’m interested in is radios and telephones, so I’d like to study __________ Engineering during my four years in university.
| A．Electric | B．Electrical | C．Electronic | D．Electricity |
He has enormous funds __________ his command.
| A．at | B．on | C．over | D．in |
Life is like an onion，sometimes makes you weep when you try to open it．
| A．that | B．as | C．which | D．what |
what is needed and what is possible, we set a growth target of around 7.5 percent economic growth.
| A．Consider | B．Considered | C．Considering | D．To consider |
Scientists say human activity contributes to climate change, but they do not agree on the rate_______ climate change may be developing.
| A．with which | B．with that | C．at which | D．at that |