[ Grammar ]
_____ the demands of aerospace, medicine, and agriculture, aengineers, are creating exotic new metallic substances.
A. Meet
B. Being met are
C. To meet
D. They are meeting

Random Topics:
Inversion + Passive VoiceNoun PhrasesClauses of ReasonConjunctive AdverbPrepositions and TensesGrammar - used toPreposition of PlaceSimple Past/Past ProgressiveIF CLAUSEConditionals III - Mixed 1st, 2nd & 3rd ConditionalsOther quiz:
Vocabulary › ViewWhat does the word ‘unvanquished’ mean?
A. Having an appearance or character resembling that of a human
B. Someone who causes mischief
C. Unconquered or undefeated
D. To crouch down low
Tenses › View
We use this tense for an action in progress when a short action stopped it.
A. past simple
B. past continuous
C. present perfect
D. present continuous
Grammar › ViewShe puts the fruits __________ the basket.
A. in
B. under
C. on
D. into
The Simple Present Tense › View
They always ________________ in class.
A. talking
B. talk
C. talks
D. talked
