Jim has _____ useful book.
Yes, and _____ book is very interesting.( )
the; a
an; a
a; the
an;the
He has many friends at school._____?( )
has he
does he
doesn't he
isn't he
Mary____ a math problem with her classmates when the math teacher knocked at the classroom door.( )
has discussed
was discussed
was discussing
discusses
______you practice, _________you will be at math.( )
The more; the better
The more; the best
The most; the better
The most; the be
Jack has learned more about teamwork(团队合作) _______ he joined the soccer team.( )
until
since
while
though
_____ my friends _______ I like playing computer games because we think it wastes time.( )
Both; and
not only; but also
Either; or
Neither; nor