Asia is______the largest continent in the world．
| A．by far | B．a little | C．far away | D．a great deal |
Where she will go and when she will leave _____ what I want to know.
| A．is | B．were | C．was | D．are |
I find _____ difficult for us to master English if we don’t work hard.
| A．that | B．it | C．this | D．what |
The father as well as his three children ______ skating on frozen river every Sunday afternoon in winter.
| A．is going | B．go | C．goes | D．are going |
Every possible means _______ been taken to prevent the river _________.
| A．have; polluting | B．has; polluted |
| C．has; from being polluted | D．have; being polluted |
I read little now and I am always busy with my job. ________ my friend.
| A．Either does | B．So is | C．So it is with | D．So does |