If China’s space technology has achieved ____ breakthrough in this field, it really is ____ amazing wonder.
| A．the; an | B．a; an | C．不填; the | D．a; 不填 |
Passengers _____ fasten their seat belts immediately after taking their seats. The belts should remain buckled during the flight whether or not the “fasten seat belt” light is on.
| A．shall | B．might | C．need | D．would |
As _____ city with rich culture, Shanghai is ______ home to a number of artists who are determined to establish their own style.
| A．the; the | B．a; the | C．a; / | D．a; a |
It will be a big help if you go to the store and get what we need for dinner. ___________, I will set the table.
| A．As a result | B．On the whole |
| C．In the meanwhile | D．As a matter of fact. |
Not only I but also Jane and Mary ______tried of having one examination after another.
| A．am | B．be | C．are | D．is |
While watching television,______.
| A．the doorbell rang |
| B．the doorbell rings |
| C．we heard the doorbell rings |
| D．we heard the doorbell ring |