—Did you have difficulty finding Ann' house?
—Not really.She___us clear directions and we were able to find it.easily?
A. was to give B. had given
C. was giving D. would give
I had a strong desire to reach in and play with the toy, but ________ thankfully by the shop window.
A. am held back B. held back
C. hold back D. was held back
--Did you enjoy the party?
--Yes, we___by our hosts.
A. were treated B. would be treated.
C. treated D. had treated
Albert Einstein was born in 1879. As a child, few people guessed that he a famous scientist whose theories would change the world.
A. has been B. had been
C. was going to be D. was
—Is Peter coming?
—No, he____ his mind after a phone call at the last minute.
A. changes B. changed
C. was changing D. had changed
In the last few years,China ___ great achievements in environmental protection.
A. has made B. had made
C. was making D. is making