This book is said to be a special one, which______ many events that cannot be found in other history books.
A.reads | B.writes | C.covers | D.prints |
Most birds find it safe to sleep in the trees, but _____ they have eggs or young chicks, they don’t use a nest.
A.why | B.how | C.unless | D.where |
---What were you doing when Tom came to see you?
---I had just put on my overcoat and_____ to visit my friends.
A.left | B.was left | C.was leaving | D.had left |
As ______along the river bank, she was singing a pop song.
A.walking | B.walked | C.to walk | D.walk |
_____ is known to everybody, Taiwan is part of China. We must unify it.
A.It | B.As | C.That | D.What |
---I rang you yesterday afternoon. A man answered, but I didn’t recognize the voice.
--- Oh, it ____ my uncle. He was in my room then.
A.must have been | B.should have been | C.must be | D.should be |