Not only all the planets but also the sun ____ in constant motion.
A: are
B: were
C: be
D: is
A: are
B: were
C: be
D: is
举一反三
- A semi-open motion is also semi-closed motion.
- Which of the following does not characterize Mercury A: nearest of all planets to the sun B: extremely hot C: little known to people D: biggest of all planets
- Which of the following is NOT an example of accelerated motion? A: Vertical component of projectile motion B: Circular motion at constant speed C: A swinging pendulum D: Earth’s motion about sun E: Horizontal component of projectile motion
- The little boy is wondering whether it is true that all the planets all _____ around the sun in the same direction.
- Not only ______ us light, but also it gives us heat A: the sun gives B: the sun does give C: gives the sun D: does the sun give