[ Grammar ]
__________ progress has been made in developing reusable rockets.
A. Many
B. A few
C. A great deal of
D. Several
Random Topics:
Adverbs of Time and PlaceAdjectives and PrepositionsArticleAdverb and Sentence StructureSynonymSubject Verb Agreement and Coordinating ConjunctionsModals and AdviceInfinitives and ING FormsAdverb of ConcessionPast ModalsOther quiz:
Passive Modals › ViewThe ____________ is a warm-blooded vertebrate that produces milk to feed its young.
A. bird
B. reptile
C. mammal
D. fish
Modal Verbs › View
. Though he was ill and missed classes, he … to do his exams well.
A. could
B. can
C. is able
D. was able