[ Grammar ]
Dogs _____ as pets for centuries.
A. Were kept
B. Are kept
C. Have kept
D. Have been kept

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Grammar › ViewWhat is the implication of the following mixed conditional? If I’d known that, we wouldn’t be in this mess.
A. I don’t know, hence we got into a mess.
B. I didn’t know and now we’re in a mess
C. I didn’t know, and we got into a mess
D. I knew but we couldn’t avoid getting into a mess
Grammar › View
By midday , we … for an hour.
A. had waited
B. had been waiting
Indefinite and Intensive Noun › ViewThe mouse _____ opened the door to the cage.
A. herself
B. oneself
C. themselves
D. itself
Conjunctions › View
Identify the conjunction: Both the sun and the moon shine in the sky.
A. not only…but also
B. both…and
C. either…or
D. neither…nor
