[ Modal Verbs ]
We ___ see the northern lights tonight if the sky is clear.
A. must
B. could
C. have to
D. might

Random Topics:
Grammar and PrepositionPrepotitionsGiving and Asking for AbilitySo / Neither / Either / TooVerbal and Appositive PhrasesCoordinating Conjunctions and Comparative AdjectivesIf/Unless - Conditional type 1Asking and Giving SuggestionPresent PerfectSubject-Verb AgreementOther quiz:
Grammar › ViewThey said, “We are busy today.”
A. They said that they were busy that day.
B. They said that they had been busy.
Vocabulary and Grammar › View
Living close to the metro station is very convenient for commuting.
A. handy
B. inconvenient
C. hard
D. difficult
Prepositions › Viewreplace…________…
A. on
B. with
C. to
D. at
Grammar › View
She bought the book ______ she had heard it was good.
A. due to
B. due to the fact that
C. so
D. because of
