[ Modal Verbs ]
. Dolphins ___ communicate through a series of clicks and whistles.
A. can
B. could
C. able to
D. must

Random Topics:
Simple present/ past/ future tensePresent Simple x Present ContinuousAction vs Linking Verbs/ Verb PhrasesNoun PhrasesModal Verbs of PermissionHomophone & HomonymPreposition & GerundComparisionsPrepositions and Phrasal VerbsTenses of Verbs - UsageOther quiz:
Homonyms › ViewTell the ___ truth and nothing but the truth.
a. hole
b. whole
Present Simple › View
Louise ________ a pilot.
A. am
B. is
C. are
Modals in The Past › ViewThey ________________ (win) the football match, but John hurt his ankle.
A. could have win
B. could have won
C. should have winned
D. should have won
Conditional Sentences › View
If I _________________(not have) this terrible cold yesterday I ________________(do) my homework.
A. don’t have, will do
B. didn’t have, would do
C. hadn’t had, would have done
