The only problem was ______ we kept getting lost! But people in Tianjin were very friendly and helpful.
A.that B.why C.whether D.what
Despite the obvious privacy concerns, the use of facial-recognition technology is ________ at some public places.
A.out of danger B.on the run C.out of sight D.on the rise
We should improve our ability to engage in international communication so as to tell China’s story well and make the voice of China ______.
A.hearing B.heard C.having heard D.to hear
Usually there might be a lot of accidents in the heavy fog. I happened to witness _______ this morning.
A. it B. those
C. one D. that
He liked the lovely dog so much that he ______ the book he was reading and played with it immediately.
A.made out B.took back C.turned down D.set aside
Over the past 10 years, Huawei has invested a total of 4 billion U.S. dollars in 5G, ______ it a leader in 5G chips, products and networks.
A.making B.to make C.make D.made
