Lisa is studying abroad. She hasn't decided back to China because of the COVID﹣19. ( )
if she flies
whether she will fly
when will she fly
how will she fly
--- Can you tell me where Tom is? --- He ________ on the playground. A. plays B. playing C. is playing
-- _______ bad weather! -- So it is. A. What B. How C. What a
What _____ it is to go horse riding __________ weather!
________ great scientist Qian Xuesen is!
()I think _______ necessary for you _______ breakfast.