_______ he says, I won’t believe him since I know he is a big liar.
None of us was good at swimming, so the crossing of this dangerous river was really a_________.
Sometimes_________good knowledge of_________ first aid may mean the difference between life and death.
-- I will take part in the English lecture competition next week. -- ________.
. The glass doors have taken the place of the wooden ones at the entrance, ________ in the natural light during the day.
. The latest job report gave a mixed picture of employment in the US, leaving investors without any clear sign ________ the economy is improving.