There is no need to______ every new word in the dictionary when you are reading.( )
look up
look at
look after
look through
------ How many people were invited to the meeting? ------About six ________.
Cars make our life easier, _________ they bring environment problems.
The Chinese ______ Mo Yan won the 2012 Nobel Prize in literature (文学), and it cheers us up.
----- Excuse me, _______? -----It’s Sunday.
You should do more and talk less. Actions speak louder than words.