Two ships are sailing in the sea on the two sides of a lighthouse. The angle of elevation of the top of the lighthouse is observed from the ships are 30° and 45° respectively. If the lighthouse is 100 m high, the distance between the two ships is:
A. 173 m
B. 200 m
C. 273 m
D. 300 m
Random Topics:
Gerunds and ModalsCoordinating and Subordinating Conjunctions“Put” Phrasal VerbAbilityAdjectives or AdverbsVerb to haveModals and Adjectives (ed-ing)Verb to Be Tenses & Object PronounPerfect Progressive TensesCountable and UncountableOther quiz:
Grammar › ViewRead and complete the sentence with the correct negative form in simple present:
She____________(not speak) German
_______
A. don’t speak
B. don’t speaks
C. doesn’t speak
Vocabulary › View
Laura is a primary school techer who ___ teaching children to read.
A. makes a comeback
B. takes pleasure in
C. has chance to
D. runs the risk of
Negative Questions › ViewWhich negative question is correctly formed?
A. Didn’t you finish your homework?
B. You didn’t finish your homework?
C. Your homework why you didn’t finish it?
D. Why you did finish not your homework?
E. Why you didn’t finish your homework?
Conjunctions › View
Identify the conjunction: We neither went shopping nor stayed at home yesterday.
A. both…and
B. neither…either
C. neither…nor
D. not only…or