The government is devoting resources to establish public health systems. _________ , the physical conditions of children have improved greatly.
| A．However | B．Meanwhile |
| C．Nevertheless | D．Otherwise |
When first __________ to the market, the computer software was not a success due to its complexity in operation.
| A．introducing | B．being introduced |
| C．introduced | D．to be introduced |
Unfortunately, the element Madam Curie devoted all her life her death .
| A．to caused | B．causing | C．to be caused | D．to causing |
Out of the crowded bus , who was dressed in a black suit and waved to a woman.
| A．a tall man in his thirties stepped | B．stepped a tall man in his thirties |
| C．did a tall man in his thirties step | D．did a tall man step in his thirties |
— I want someone to write the composition for me.
— No. As a student, you ________ depend on yourself.
| A．shall | B．will | C．can | D．may |
— He should have been warned of the danger.
— ________, but he wouldn’t listen to me.
| A．Yes, he shouldn’t | B．So he should | C．So was he | D．So he was |