You’d better make a mark ______ you have any questions.
#55899
A
at which  
B
at where  
C
the place  
D
where
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-- - My backpack __. --- Don't worry. Let's go to the Lost & Found.
#58466
A
is missing
B
has found
C
is broken
D
is forget
 Be friendly and you’ll ____ well with others.
#52580
A
look at
B
get on
C
put on
D
pick up
— Could you help me do some cleaning after school?— If I _______, I will do it.
#52480
A
am free
B
will be free
C
have had time
D
had time