Only when __________________ permission _______________ allowed to enter the lab.
#4817
A
a teacher has given; are the students
B
has a teacher given; are the students.
C
has a teacher given; the students are
D
a teacher has given; the students are
推荐题目
It is believed that if a book is ______, it will surely ______ the reader.
#4930
A
interested; interest
B
interesting; be interested
C
interested; be interesting
D
interesting; interest
.It is no use ______ after you know your failure.
#4686
A
cry
B
to cry
C
crying
D
cried
——Hi, Steve, you look tired.——I am tired. I ______ the living room all the afternoon.
#4727
A
painted
B
had painted
C
have been painting
D
have painted