The leaders of the Chinese mainland and Taiwan met in Singapore ________ November 7, 2015.

Jim has changed a lot in the past few months.—Yes, he used to ___________ late. But now he is used to ___________ early.

many extra planes and trains are usedto carry passengers, traffic tools are still ______needed during “May Day”holidays.

－I must be off now; or it will be too late to see John.－________? Do you really want to see that dull boy?

Riding bikes has advantages __________ driving cars ________ many aspects