I never doubt ______ his advice is of great ______ to me.
More than nine hundred students got into the Jinghong NO.1 Middle School this year.
I have an _______ reading book. Are you _______ in it?
I _______ a museum with my friends at this time yesterday.
—Kangkang, can I borrow your bike? —_______
—Would you like to go for a picnic with us? —_______, but I’m too busy.