【单选题】That suggests that catch-up sleep may undo some but not all of the damage that sleep deprivation causes, which is encouraging given how many adults don’t get the hours they need each night. Still , Li...
A.
express formal support or approval for someone or something
B.
sign your name on the back of a cheque to show that it is correct
C.
say in an advertisement that you use and like a particular product so that other people will want to buy it
D.
to write details of a driving offence on somebody's driving license
【单选题】Look at the following writing question and decide how many body paragraphs you should write. The world of work is changing rapidly and people cannot depend on the same job or same conditions of work f...