Going on a trip be expensive and difficult , so making a plan is necessary.
A. must B. ought to C. shall D can
, follow the directiom on the bottle carefully.
A. Takes medicine B. To take medicine
C.When one takes medicine D. When taking medicine
He is said a book on the history of Chinese tone bridge , but I don’t know if he has finished it.
A. to have written B. to be writing C . having writing D writing
There are boys from 7 to 14 age.
A. ranging , of B rang , in C. ranging , in D. range , of
While shopping ,people sometimes can’t help into buying something they don’t really need.
A. persuade B. persuading C. being persuaded D. to be persuaded
The experiment turned out to be failure, but “ failure goes before success”
A a , a B /, / C a , / D / , a
