【单选题】
Be quiet! Its rude to ____ people when they are speaking.
①
interfere
②
introduce
③
interrupt
④
prevent
【单选题】
When is appropriate for the teacher to give classroom instructions to students?
①
Give directions to tasks or activities, checking comprehension, giving feedback
②
Providing explanations to a concept or language structure, drawing attention
③
Setting requirements, checking comprehension, assigning homework
④
All of the above.
【单选题】
When checking in, you need to show your ticket and ______.
①
import
②
export
③
passport
④
transport
【单选题】
When I saw Mary , she __________ on the piano.
①
is playing
②
plays
③
was playing
④
played
【单选题】
When he was a boy, he used to go there and watch ____.
①
to repair bicycles
②
bicycles to be repaired
③
bicycles being repaired
④
repairing bicycles
【单选题】
When we drove to the country, we saw many _____.
①
herds of cattles
②
herds of catt
③
herd of cattle
④
herd of cattles