Nobody noticed the thief slip into the shop, because the lights happened to _______.
A. put out
B. turn out
C. give out
D. go out
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We should wash our hands _____ we eat.
A. when
B. while
C. before
D. after
The Spring Festival is on the way.Many shops have___ huge posters with the word “"sales”".
A. put up
B. put on
C. put out
D. put off
--________will your mother come back? -- In two days.
A. How often
B. How soon
C. How long
D. How far
--Dongdong, _______ toy car is that? --It’s _______.
A. Who’s ; hers
B. Whose; mine
C. Whose; her
D. Who’s; my