[ Grammar ]
Did you see Karla? She just left in a hurry after receiving that phone call and she looked worried. I am sure, it ____________________ something serious.
A. Mustn’t be
B. Must be
C. May be
D. Might not be

Random Topics:
SentencesIndirect SpeechGender and GrammarPossesive Pronouns and Modals of AbilityConjunctions and TransitionsPreposition after some VerbsPresent Simple & Present Continuous TensesTo infinitive - GerundArticles and QuantifiersVerb Present Simple TenseOther quiz:
Present Continuous Tense › ViewI … an English magazine in my room now.
A. is reading
B. are reading
C. am reading
D. read
Grammar › View
Which conjunction should be used to complete the sentence?
The oven timer went off, _________ I took the turkey out of the oven.
A. yet
B. but
C. for
D. so
Homonyms › ViewWriters like to live high above the world in a ___.
a. garret
b. garrote
Homonyms › View
The ___ went on for more than six weeks.
a. trail
b. trial
