—Mom, today I received a message telling me to send money to the account.
—Delete it. It’s a trick. Many a person ________ by such tricks.
A. have been cheated B. were cheated
C. has been cheated D. was cheated
Teachers have to constantly update their knowledge in order to maintain their professional ________．
A．consequence B．independence
C．competence D．intelligence
—China is developing rapidly.
—Yes, to make our country more prosperous, we should firmly the principle of scientific development.
A. contribute to B. subscribe to C. stick to D. turn to
Saving and recycling are long-term projects _______ determination matters a great deal.
A. that B. which C. whose D. where
Jack wasn’t saying anything，but the teacher smiled at him ________he had done something very clever．
A．as if B．in case
C．while D．though
US President Barack Obama ________ a national speech at the 10th anniversary of 9/11 terror attacks．
A．addressed B．delivered
C．spoke D．recited
