Put yourself in situations where you will be forced to communicate in English, ____ you will see more progress over time.
| A.or | B.so | C.yet | D.and | 
—I am sorry I didn’t do a good job.
 —Never mind.________, you have tried your best
| A.Above all | B.In all | C.At all | D.After all | 
Full use should be _______the natural resources to combat the energy crisis.
| A.made of | B.had of | C.taken of | D.done with | 
Our classroom is very clean. Do you know who__cleaned it﹖
| A.was it that | B.it was that | C.was it who | D.he was | 
The great hall was crowded with many people, _____ many children _____on their 
  parents’ laps.
| A.including; seated | B.including; seating | 
| C.included; sat | D.included; sitting | 
________ of my sisters are experts in agriculture. Helping the farmers improve their 
  farming techniques _________their duty.
| A.Each; are | B.Both; is | C.Neither; are | D.None; is |