[ Grammar ]
choose the grammar structure of present perfect
A. subject , have +simple past verb
B. subject+have-has verb+past participle verb
C. subject+past participle verb +have has
D. subject + has +past participle ver
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So or SuchFuture FormsMixed TensesPresent and Past Perfect TensesAdverbs of How Something is DoneClauses and GerundsSubject Verb Agreement Irregular VerbAdverbs, Infinitives, Definite ArticlePresent Continous TensePre-intermediateOther quiz:
Conditional Sentence › ViewThe death rate would decrease if hygienic conditions _______ improved.
A. were
B. was
C. is
D. would be
Past Participle › View
Put put ……
A. Putting
B. Putted
C. Put
D. Putter
Grammar › ViewKnowing how hard the test was, I wish________for it
A. would study
B. had studied
C. studied
D. have studied
Tenses › View
When do we use simple present tense?
A. When an action has happened.
B. When an action is happening right now.
C. When an action may happen in the future.