When this new kind of virus broke out at first in Mexico, no one had the least idea that it would _______ so rapidly throughout the world.
| A．export | B．spread | C．expand | D．deliver |
the history of China, the history of the Untied States is quite short.
| A．To compare with | B．Comparing to |
| C．Comparing with | D．Compared to |
His great contributionsthe development of a modern China will never be forgotten.
| A．by | B．to | C．for | D．with |
He isvery man to whom you can turn forwhen you have difficulty.
| A．the; help | B．the; the help | C．a; a help | D．/; help |
The book is said to the special one,many events not found in other history books.
| A．it writes | B．which covers | C．it prints | D．which reads |
Don’t worry about her; she will realize what you said is for her good
| A．sooner or later | B．sooner and later |
| C．soon or late | D．soon and late |