—How anxious Ruby is! I wonder what on earth she ________.
—I’m afraid nobody knows. She is always so strange.
| A．has expected | B．will expect | C．will have expected | D．is expecting |
Let’s keep to the point or we ___________ any decisions．
| A．will never reach | B．have never reached | C．never reach | D．never reached |
In the Great Depression, the American government couldn’t find good solutions _____ the unemployment problem
| A．of | B．to | C．on | D．about |
In January, 2004, the United States successfully launched “Spirit”, a Mars Exploration Rover, _____ a new milestone in the history of mankind.
| A．it marked | B．marking | C．marked | D．to mark |
I spent five hours_____________ the book__________ I paid 10 dollars.
| A．reading; that | B．to read; for that | C．read; which | D．reading; for which |
With five hungry children seated round the table, the food disappeared_____________.
| A．on time | B．in time | C．at no time | D．in no time |