_______ carefully, this letter is very beautiful.
A. Type
B. Typing
C. Typed
D. To typed
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Yesterday, Peter _________ a ticket for the movie.
A. gave
B. had been given
C. was given
D. was gave
The lecture which lasted about three hours was so _________ that the audience couldn’t help sleeping.
A. boring
B. bored
C. clumsy
D. tired
_______ from space, we can find that our earth looks like a“blue planet”.
A. Seen
B. Seeing
C. Having seen
D. To see
I found _______ pleasant walking along the river after supper.
A. this
B. that
C. it
D. which