. Social networking is an important factor________ business success.
| A．devoting to | B．appealing to | C．attaching to | D．leading to |
Sometimes I can’t help wondering what’s the matter with Tom．I can’t stand it that he often_____ me and talks with the other students around him．
| A．upsets | B．recognizes | C．concerns | D．Ignores |
______ these models several were exciting, ____ of them exactly right．
| A．Of; none of which | B．Among; none of which |
| C．Of; none of them | D．Among; none of them |
—Did you reach the top of the mountain?
—Yes. Even I myself didn’t believe I couldit.
| A．work | B．climb | C．get | D．make |
His aunt’s lettershim of those beautiful days when they used to live together in his hometown.
| A．call up | B．call for | C．call on | D．call at |
He has been fired and will have toover charge of his office tomorrow.
| A．take | B．hand | C．get | D．go |