[ 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
Select your answer:
Random Topics:
Conditional 0Tenses and VerbsNouns and QuantifiersSimple Present Continuous Tenselike/do not likeIrregular verbsWH- Question WordsAdverbsPrepositions after Verbs and AdjectiveAdjective & AdverbsOther quiz:
Grammar › ViewPresent Perfect Continuous: How many times (meet) we this week?
A. have..met
B. had…met
C. has…met
Grammar › View
In the morning, before school, I volunteer to walk my neighbors’ dog because they are on vacation.
A. No change
B. Add comma after dog
C. delete comma after morning
D. delete comma after school