Every month, scientists … new gadgets to help us with our daily life.
A. estimate
B. involve –
C. invent
D. experiment

Random Topics:
Adverb Clauses of TimePresent Perfect Negative and InterrogativeGrammar ClausesPresent Simple TensePast Simple vs Present SimpleDemonstrative PronounAction VerbIF CLAUSESimple Verb TensesFuture Simple TensesOther quiz:
Conjunctions › ViewYou can choose ___ red ___ blue bag.
A. neither … nor
B. unless
C. either … or
Modal Verb in Passive Voice › View
Choose the correct sentence of passive voice.
A. She has a good voice. Her interest in singing must be encouraged.
B. She has a good voice. Her interest in singing must encouraged.
C. She has a good voice. Her interest in singing must being encouraged.
D. She has a good voice. Her interest in singing must encourage.
Grammar › ViewVerb ending in -ing: Select the -ing form of a verb:
A. shine
B. shines
C. shining
D. shone
Clause › View
I must do whatever my doctor says to me.
A. Noun clause as subject
B. Noun clause as object
C. Noun clause as object of verb
D. Noun clause as object of preposition
