______ he tried many times, he still didn't move the heavy box.
)Tong is afraid,because he was terrified by an air accident.
)—How does your brother study English? —He studies English .
)Why ______ ask your mother to shop with you.
When he heard the _________ news, he was so _______.
I don’t know . A what to do it B how to do it C how to do D what should I do