It’s hard to imagine_____it would be like living on Mars.
A.that B.how C.where D.what
I don’t know_____the future holds in store for me，but I’ll face the storms of life bravely.
A.how B.where C.that D.what
Stage fright is a common example of___educators call a“lack of confidence”among students.
A.that B.what C.which D.whose
—Have you finished the book?
—No，I’ve read up to____ the children discover the secret cave.
A.which B.what C.that D.where
I really don’t know______Tom lost his wallet.
A.when was it that B that it was when
C. where it was that D. it was where that
Our class adviser doesn’t doubt，in any case.___.we can overcome the difficulties in our study.Healways gives us a confident smile.
A.how B.whether C.that D.why
