Considerable evidence has been found over the years ________lack of exercise is connected with increased risk of cancer.
A.whether B.that
C.why D.how
I kept ______ the incident, asking myself again and again how it could have happened.
A.chewing on B.sticking to
C.referring to D.relying on
Not everybody agrees to the plan. Some support it, while I am one of ______opposed to it.
A.who B.those who
C.which D.those
The river ________ at least 50 meters in width, but the ten-year-old boy can swim across it within minutes.
A.is measured B.measures
C.is measuring D.is being measured
With more forests being destroyed, huge quantities of good earth ________ each year.
A.is washing away B.is being washed away
C.are washing away D.are being washed away
Everything _____ doing is worthy of _____ well.
A. worthy; being done B. worth; being done C. worthy; doing D. worth; doing
