Attention, please! And keep ________ when I am taking a photograph of you.
#19496
A
still
B
calm
C
quiet
D
silent
推荐题目
 It's said that __________ is going to give us a lecture.
#18793
A
a famous young American
B
an American famous young
C
a famous American young
D
a young famous American
The book is primarily ___________ Soviet-American relations during the Cold War.
#19593
A
concerned about
B
concerned with
C
concerned for
D
concerned in
 How cold it is! We’ve never had ______ this winter.
#19581
A
the colder day
B
a cold day
C
the coldest day
D
a colder day