[ Grammar ]
Rigging on Arab ships were redesigned to make better use of changes in the wind.
A. Change were to was.
B. correct as is

Random Topics:
Present Simple & Present Progressive TenseAdjective Clause and Adverb ClauseModals with Perfect InfinitiveAdverbs and PhrasesGrammar - Present PerfectWho or WhomGerund, Infinitive, Bare VerbPast simple regular verbsPassive Voice Active VoiceFunctional Sentence TypesOther quiz:
Continuous Tenses › ViewYou are planning your activities for tomorrow. Which sentence uses the future continuous tense?
A. I will attend the meeting at 3 PM.
B. I am attending the meeting at 3 PM.
C. I attended the meeting at 3 PM.
D. I will be attending the meeting at 3 PM.
Phrasal Verb › View
Lots of fruit and vegetables will help you _________ your cold.
A. get over
B. find out
C. turn back
D. cheer up
Grammar › ViewI finished painting the house ___ myself.
A. to
B. for
C. by
D. of
Grammar › View
Fill in the blank:
Dinosaurs existed at the beginning of time.
These times were called ___historic.
a. non-
b. pre-
c. un-
d. re-
