The art exhibition is really worth _______,and you’re sure to learn lot from it.
----_________ great progress you’re made ! Congratulations !---- Thank you !
The chemistry teacher asked the students ________ more attention _________the lab clean.
---- My best friend left me because I hit him on the face last night .----______________ .You were so rude.
---- If you don’t know what the new words mean , ________- in a dictionary .
---- ______ you ever ______ aboard ?--- Yes, but only once.