______ remains doubtful ______ this is an important discovery.
A.That; whether B.That; that C.It; whether D.It; that
These two kinds of cell phones differ ________ shape, but they are similar ________ each other in some functions.
A.from; with B.in; to C.in; with D.from; to
There are some differences between American and British English, but do you know _____the differences came into being?
A.that B.what C.which D.how
More highways have been built in China, _____ it easier for people to travel everywhere.
A.made B.making C.to make D.having made
The traffic is heavy today. I ____ arrive a bit late, so could you save me a place?
A.can B.must C.dare D.might
— You ’d better be careful, Linda. The knife is sharp.
— _____, Mum.
A.I won’t B.I can C.Got it D.It’s impossible
