The fact has worried many scientists ______ the earth is becoming warmer and warmer these years.
| A．what | B．which | C．that | D．though |
He ______ for Shanghai this Friday, and he wonders when the first train ______.
| A．leave; takes off |
| B．is leaving; takes off |
| C．leave; is taking off |
| D．am leaving; is taking off |
With the help of the doctor, the patient was ______ recovering from his heart trouble.
| A．frequently | B．exactly |
| C．sincerely | D．gradually |
You will ______ your chance of the job if you wear the pair of slippers like this!
| A．ruin | B．gain | C．take | D．hurt |
Leaders should be careful not to act beyond their ______ and do things against the law.
| A．power | B．energy |
| C．strength | D．force |
Though the rescue took more than eight hours, that experience inspired Helen to devote her life to ______ others in need.
| A．help | B．helped |
| C．helping | D．being helped |