[ Past Simple Negative & Questions ]
Harriette and Simon ______ surprised when they saw their present.
A. was
B. did
C. were
D. are

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Future Tense VerbModals of AdviceModals "Should"Modal Verb, Passive VoiceGrammar (Adverbs, Prepositions, Prepositional Phrases)Tenses and FoodPreposition and AdjectiveVerbsDescriptionsGrammar - Capitalization and Possessive NounsOther quiz:
Vocabulary › Viewconnected with several countries
A. intentional
B. international
C. increase
D. multinational
Past Modals › View
we can’t conjugate a modal verb
A. it’s true
B. it’s false
Grammar › ViewMany people who will like to lose weight have joined health clubs and nutrition centers. Which one is incorrect word/phrase?
A. Many
B. will like
C. have joined
D. health
Grammar for TOEFL › View
Potassium has a valence of positive one because it usually loses one electron when _____ with other elements.
A. does it combine
B. it combines
C. in combining
D. combination
