In physics, it is more difficult to walk on a sandy road than it is to walk on a concrete road because…
A. Sand is soft and concrete is hard
B. The friction between sand and feet is less than that between concrete and feet
C. The friction between sand and feet is more than that between concrete and feet
D. The sand is grainy whereas concrete is smooth
Causative VerbThe First ConditionalSubject, Verb & Object Complement
Next quiz: Participle & Appositive
_____ her mistakes, the stewardess immediately apologized to the passenger.
A. In realizing
B. She realized
How to use : Read the question carefully, then select one of the answers button.
Tips : If this page always shows the same questions, make sure you correct the question first by pressing the "check answer" button.