【单选题】
_______every week for several hours is good to keep healthy.
①
Exercise
②
To exercise
③
Should exercise
【单选题】
?There are altogether fifty students in our class, twenty____ are boys. ?
①
of them ?
②
of those ?
③
of whom ?
④
of whose ?
【单选题】
A lot of students ____ the campus since July 1.
①
have left
②
leave
③
left
④
is leaving
【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】
Nancy is considered to be ________ the other students in her class.
①
less intelligent
②
the most intelligent
③
the most intelligent
④
as intelligent as
【单选题】
TOEFL is a test for students __________ native language is not English.
①
that
②
of whom
③
whose
④
which