Be careful when you cross this busy street. _____, you may get run over by a car.
| A．If not | B．If so | C．If any | D．if possible |
—Did you have a good time in Veitnam last week?
---______, it was too hot.
| A．Not really | B．Yeah, why not |
| C．oh, great | D．You are right |
—Beijing experienced _____ heaviest snowfall in ____ month of January .
| A．\ ; a | B．a ; the |
| C．the ; the | D． the ; a |
We already have ______pencils, but we need two ____ pens.
| A．dozen of ; dozen | B．dozens of ; dozens |
| C．dozens of ; dozen | D．dozen; dozen |
Why are you leaving right now? You promised to stay ____ hours.
| A．both two | B．more two |
| C．two another | D．another two |
We asked John and Jerry, but ____ of them could offer a satisfactory explanation.
| A．either | B．none | C．both | D．neither |