The teacher came in the classroom, book in _____ hand. After that, he put the book in ____place.
| A．the, / | B．the, the | C．his, the | D．/, / |
Misunderstandings_______ from short of communication, unless______ properly, may lead to serious problems.
| A．arisen; handling | B．arising; handled |
| C．rising; handled | D．risen; handling |
________ where we can stay for a week.
| A．Next is another hotel to it | B．Next to it another hotel is |
| C．Next to it is another hotel | D．It is next to another hotel is |
Carbon dioxide(CO2)_______ from burning fuels is the most common of the so-called greenhouse gases.
| A．producing | B．having been produced |
| C．to be produced | D．produced |
We must apply what we have learned to our daily work because in no case_____ from practice.
| A．should theory separate | B．theory should be separated |
| C．theory should separate | D．should theory be separated |
Mrs. White found her husband surrounded by letters and papers and_______ very worried.
| A．look | B．looked | C．looking | D．to look |