11.He spoke _________ he knew all about our plans when in fa

11.He spoke _________ he knew all about our plans when in fact he knew nothing at all.
a.as b.if
c.as though d.though
12.The citizen were __________ the trouble the escaped monkeys might cause.
a.warned b.aware
c.aware of d.warned of
13.He was so _________ in reading the novel that he didn’t even hear the knock at the door..
a.involved b.nervous
c.effective d.focused
14.I received a __________ parcel yesterday and I am still wondering who may have sent it.
a.maximum b.mysterious
c.fortunate d.sincere
15.He asked her so many times to do it that __________ she did so.
a.on end b.by the end
c.to the end d.in the end
16.As we were held up in a traffic ________ ,it seemed that our car couldn’t move at all.
a.block b.crush
c.group d.jam
17.It is generally considered unwise to give a child __________ he or she wants.
a.however b.whatever
c.wherever d.whenever
18.You have to act _________ if you are to save his life.
a.immediately b.lastly
c.immensely d.firstly
19.We are fully ___________ of the problem,why it exists and what we can do about it.
a.aware b.known
c.noticed d.involved
20.It is this desire to live on _____________ supports him to fight against the terrible disease.
a.where b.how
c.that d.what