______nature reserves _______us learn more about protecting animals.
A. Studying ; helpB. Studies ; helpsC. To study; helping D. Studying; helps
—____________?
—It was sunny and windy.
A.What was the weather B. What was the weather like
C.How was the temperature D. What was the temperature
Bees always remember ________back the same way _______they went.
A. coming; from B. coming; as C. to come; asD. to come ;from
Please_______the painting on the wall and _______the washing machine later.
A. put up; put in B. put out; put inC. put in; put upD. put up; put down
What exactly does the sign _______?
A. stand for B. stood forC. stand upD. stood up
Tom______half an hour doing his homework and listening to pop music ______him 20 minutes.
A. costs; spends B. spends; takeC. takes; costs D. spends; takes
