In February, Chinese tech company Huawei _____Mate X, a foldable(可折叠的)5G mobile phone.( )
A.is introducingB.introduced
C.introducesD.was introduced
Wow!You ________ dinner!Let's eat now.( )
cook
are cooking
will cook
have cooked
Mr.Liu is a really nice person﹣﹣﹣the ________ person I know.( )
nicer
nicest
happier
happiest
Don't take the dictionary away.I ________ it.( )
use
used
am using
have used
I have travelled a lot.I ________ speak four languages.( )
can
may
must
need
Grandfather lives with us.We all ________ him.( )
look at
look for
look after
look like