[ Vocabulary and Grammar ]
The scientist acted as an ________ during the experiment.
A. observation
B. observe
C. observer
D. observing
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Grammar › ViewChocolate _____ harmful for your teeth, but strawberries _____ useful for your health.
A. is / is
B. are / is
C. are / are
D. is / are
Vocabulary › View
Which of the following best defines the term “advantage”?
A. A situation in which someone is likely to succeed
B. A situation in which someone is likely to fail
C. A situation in which someone is neutral
D. A situation in which someone is confused
Grammar - Be going to › ViewI _______________________________ to wash the car tomorrow morning.
A. will going
B. am going to
C. am going
D. will going to
Present Perfect and Past Simple › View
Past Simple refers to?
A. actions or events in the present
B. action or events in the past
C. action or events in the future