The………………of the environmental protection program has forced people to reflect on every item they discard.
A. issue
B. disposal
C. emission
D. institution
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Tenses › View. Choose the correct form: ‘He (not, finish) his project yet.’
A. He has not finished his project yet.
B. He did not finish his project yet.
C. He has not finish his project yet.
D. He is not finishing his project yet.
Tenses › View
Identify the verb tense in the sentence: We have been waiting for the bus.
A. Present simple
B. Past perfect continuous
C. Future perfect continuous
D. Present perfect continuous
Passive Voice › ViewThey suggest that you …………………working hard to achieve your goal.
A. keeping
B. should keep
Present Perfect Continuous Tense › View
He …….this science for 3 years. (study)
A. have been studying
B. has been studying
C. has studied
D. is studying