It’s bad ____ for a man to smoke in the public places where smoking is not allowed.
| A．behavior | B．action | C．manner | D．movement |
The wild flowers looked like a soft orange blanket _____ the desert. 
| A．to cover | B．covered | C．cover | D．covering |
30. My parents have promised to come to see me before I _____ for Africa.
| A．have left | B．leave | C．left | D．will leave |
It was the principles I learned from my reading _____ enabled me to get bigger and better jobs.
| A．that | B．which | C．what | D．who |
.He could see the tall building__________ .
| A．in the distance | B．in distance | C．from distance | D．to a distance |
Why not get some work experience first__________go straight on to university?
| A．other than | B．rather than | C．more than | D．less than |