[ Grammar ]
Li Hong and Li Khai ________ an aeroplane right now.
A. board
B. boarding
C. is boarding
D. are boarding

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Sentence Structure › ViewThe new educational curriculum focuses on developing critical thinking skills and encouraging creativity among students.
A. Simple (S)
B. Compound (Cpd)
C. Complex (Cpx)
Grammar › View
Students _____ listen to the teacher.
A. does
B. are
C. is
D. should