This book will show the readers ______ can be used in other contexts.
A．how that they have observed B．that how they have observed
C．how what they have observed D．that they have observed
According to a study carried out by an American university, when you eat has ______ on your mood as ______ you eat.
A．much of as an effect; what B．much of as an effect; which
C．as much of an effect; what D．as much of an effect; which
The first decade of the 21st century ______ breathtaking, non-stop development in China.
A．witnesses B．witnessed C．will witness D．had witnessed
The real-name policy for train tickets has been applied to all trains since January 1,2012 in China, ______ I think will make it easy for people to get tickets.
A．which B．when C．what D．where
His letter was so confusing that I could hardly make any ______ of it.
A．explanation B．meaning C．sense D．guess
Today the canal is still being used. Ships can be seen moving on ______ water now and then. But it is no longer ______ busy water highway.
A．a, the B．the, / C．/, a D．the, a
