[ Passive Modals ]
People —- (not explain) some UFO sightings easily. No one is able to explain them easily.
A. cannot be explained
B. cannot explain
C. cannot been explained
D. cannot explained

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Relative Pronoun/AdverbsPast Perfect vs Past SimpleModals for Advice, Obligation/Prohibition, Necessity and Lack of NecessityConditionals and Modals of ProbabilityVerbs & Verb TensesPresent Perfect Simple and ContinuousPast Tense vs Present Perfect TenseConditional Typesa, an, the, zero articleEssential and Nonessential ClausesOther quiz:
Gerunds + To Infinitive › ViewThe thief ran too quickly for the police ……
A. to catch
B. catching
C. catches
D. catch
Grammar › View
5 My boss……………..to Kota Bahru every month.
A. fly
B. flies
C. is flying
D. are flying
Grammar › ViewThe student ____ homework is due tomorrow needs to complete it tonight.
A. whose
B. which
C. who
Grammar › View
Choose the correct spelling below.
A. discover
B. discaver
C. descover
