We should know that we can only reach the top if we are ready to _________ and learn from failure.
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.
.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.