Does your mother go to work by bike every day？
No．She sometimes takes bus．（ ）
A．aB．anC．/
Some people are too shy to say a word in public． However， __________ aren't．（ ）
A．anotherB．the otherC．othersD．the others
It is said that 5G is coming． It will improve our life great!
__________ amazing it is!（ ）
A．What anB．How aC．WhatD．How
Those young firemen were brave enough to __________ the fire in the forest．（ ）
A．work outB．put outC．hand outD．look out
What is your mother doing， Linda？
She ___________dinner in the kitchen now．（ ）
A．is cookingB．was cooking
C．cookD．cooking
__________ the help of modern technology， scientists got a photo of a black hole．（ ）
A．AtB．InC．OnD．With