Peter here now. I guess he to the lab.
A. isn't ; has gone B. is ; has gone
C. isn't ; went D. isn't ; has been.
In the old days he work day and night to make a living.
A. had to B. was able to
C. could D. must
The train will leave Beijing a few minutes.
A. for; in B. for; after
C. to; in D. to; after
Write carefully so that you will make mistakes in you honework
A. mush; less B. more; least
C. more; fewer D. very; fewer
There are already eleven in the list. You are the .
A. twelve B. twelveth
C. twelvieth D. twelfth
Suddenly there appeared a great many people on banks of the river.
A. all B. both
C. the other D. another
