[ Grammar - could / could not ]
In the past, doctors couldn’t __________ as many lives as they can now.
A. saved
B. to saves
C. save
D. saving

Random Topics:
IF CLAUSEPassive Voice and Relative ClausesSimple Past TensesPresent Simple and Present Continuous TensesThere is, There are, Some, AnyMiscellaneous Grammar UsagesClauses and ConjunctionSubordinating and Coordinating ConjunctionsPronounsTime PhrasesOther quiz:
Aspect or tenses of Verbs › ViewI _______________ my dinner right now.
A. eat
B. will eat
C. am eating
D. has been eaten
Grammar › View
Your friend (go) _________ home at 4 pm.
A. goes
B. going
C. go
D. gone
Relative Pronouns › ViewDo you know anyone ______ has visited Ireland?
A. whom
B. whose
C. that
D. which
Grammar › View
The movie was ____ boring that I fell asleep.
A. So
B. And
C. More
D. The most
