I ____ an old friend of mine when I ______ in the street yesterday afternoon.
| A．met...； was walking | B．was meeting ... walked |
| C．was meeting ... was walking | D．met ... walked |
EverydayIspendtwohours______myhomework.
| A．finishingtodo | B．finishingdoing |
| C．tofinishtodo | D．tofinishdoing |
He’s got a birthday cake____ his ____ birthday.
| A．on ，thirteen | B．for ,thirteen |
| C．on ,thirteenth | D．in ,thirteen |
He has been running______.
| A．since two hours | B．for two o’clock |
| C．two hours ago | D．for two hours |
We’ve been _____ for her for 5 hours.
| A．wait | B．waiting | C．to wait | D．waited |
_____ you study, _____ grades you will get.
| A．The hard, the good | B．The harder, the better |
| C．Harder, better | D．The better, the harder |