[ Grammar ]
A frog ______ amphibian.
A. is an
B. is a
C. are an
D. are a

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Grammar › ViewWhich one is postcedent ?(cataphora)
A. I finally bought it but the smart phone was too expensive
B. I bought a smartphone,It was to expensive
Phrasal Verbs › View
A: When does the teacher want our compositions? B: We have to hand ___ tomorrow.
A. them down
B. them out
C. them in
D. them up
Gerund/ To Verb/ Verb › ViewI don’t expect ………………the exam
A. to pass
B. passing
C. pass
Simple Tenses in English › View
learn is
A. regular
B. irregular
C. both
