—Can you guess if they ________tomorrow? —They will come if they ________free, I think.
This maths problem is_______ easier but______ interesting than that one.
The weather in Beijing is different from______ in Suzhou.
Jim, ___ read books while you are walking in the street. It’s very dangerous.
The children enjoyed_______ very much last night.
Shanghai is bigger than_____in Jiangsu and bigger than______in China.