We were delayed at the train station．Otherwise，we here by lunch．
| A．must have been | B．could be |
| C．should be | D．would have been |
As teenagers of the 21st century, we should be ready to _____ the challenge of society.
| A．put | B．do | C．make | D．meet |
Sorry, Sophia, I have got a phone call now and I will come back _____.
| A．for the moment | B．in a moment |
| C．for a moment | D．at the moment |
When the question was under discussion, Gloria _____ an idea that the prices of cars should be reduced.
| A．came about | B．came up to |
| C．came out | D．came up with |
Bill ______ a couch potato and now he has a healthy lifestyle.
| A．is | B．used to be |
| C．is used to being | D．is used to be |
I’m not sure whether John ______ his parents has arrived.
| A．as well | B．as well as |
| C．as usual | D．as soon as |