Passage 1: Questions 21-25
The James Webb Space Telescope–humanity's biggest_(21)__ yet in its quest toprobe the Univetse --- soared into space on 25 December, matking the culmination ofdecades of work by astronomers around the world. But for Webb to begin a new eta inastronomy, as many scientists hope it __(22)__, hundreds of complex engineering stepswill have to go off without a hitch in the coming days and weeks.
"Now the hard patt starts," says John Grunsfeld, an astrophysicist and former astronautand__(23)_ of science for NASA.The US$10-billion Webb is the most complicated and expensive space observatory inhistory, and the __(24)__to NASA's Hubble Space Telescope, which has studied theUnivetse since 1990. Following its launch, Webb will now embatk on the riskiest part ofits missionㅡ__(25)__ all the patts required for its enormous mirror to peer deep intothe cosmos, back towards the dawn of time.
【題組】21.
(A) tap
(B) game
(C) gamble
(D) fun