It is worth considering what makes “convenience”foods so popular，and ______ better ones of your own．
| A．introduces | B．to introduce |
| C．introducing | D．introduced |
Jose cupped his hands together to cover his mouth ________ other people would see him cry.
| A．so that | B．now that | C．for fear that | D．on condition that |
_________along the quiet road at forty miles an hour, and then an old man suddenly started to cross the road in front of me.
| A．Driving | B．When I was driving | C．I was driving | D．Having driven |
After＿＿＿seemed a hopeless wait, four coal-miners trapped in the mine for 125 hours were finally rescued in Heilongjiang Province．
| A．when | B．that | C．it | D．what |
We _______ the difficulty together, but why didn’t you tell me?
| A．should face | B．might face | C．could have faced | D．may have faced |
The real secret to successful learning lies in students＿＿＿＿an interest in what they are doing.
| A．to take | B．taking | C．taken | D．having taken |