—Who’s that boy reading in the study ? Is it David?—It __________ be David. I saw him go home just now.
The underlined part in the “competitor” is pronounced as ________
----Would you like to attend China's Got Talent (中国达人秀)? ---- ______ But I'm busy revising for my test.
—You aren’t a stranger, are you? —______, don’t you remember______me at the school gate ten minutes ago?
Newton was playing under an apple tree ____ an apple fell onto his head.
Which of the diagrams below shows the air temperature of Beijing in a year?