It is well known to all that a machine needs fuel to run; ,man needs food to live on.
| A．similarly | B．completely | C．likely | D．absolutely |
____ has helped to protect the environment is worth praising.
| A．Who | B．The one |
| C．Anyone | D．Whoever |
—Why didn’t Tom go to the concert last night ?
— I have no idea,but I think he _____ in his study.
| A．read | B．have read |
| C．was reading | D．would read |
Being examined twice a year is the rule that every driver _____ obey in this city.
| A．shall | B．can |
| C．ought to | D．need |
I’m calling to ask for information about the position____ in the local TV news.
| A．advertising | B．advertised |
| C．having advertised | D．to advertise |
It has been proved ____ several new kinds of medicine____ a positive effect on the cure of H7N9.
| A．which，has | B．if, has |
| C．that, have | D．what, have |