While typing, Helen has a habit of stopping ______ to give her long and flowing hair a smooth.
A now and then B.over and over C.up and down D.here and there
Her design won the first prize in the competition. Years of patience and hard work had at last ______.
| A．put off | B．paid off | C．taken off | D．kept off |
He asked us to ______ them in carrying through the plan at the meeting yesterday.
| A．provide | B．encourage | C．assist | D．persuade |
The ______ look suggested that there must be something ______ around her.
| A．scaring; scared | B．scared; scaring | C．scaring ; scaring | D．scared; scared |
Chongqing and Wuhan are among the most important cities in China _______ their size and population.
| A．in favor of | B．in case of | C．in view of | D．in terms of |
--- Have you handed in your schoolwork yet?
--- Yes, I have. I guess it ______ now.
| A．has graded | B．is graded | C．is being graded | D．is grading |