Liu Guozheng must keep the record lifting(举重) .[ ]

When _____ your mother _____ you that blue dress, Lucy? —Sorry, I really can’t remember. Maybe two or three weeks ago.

My younger brother couldn’t work out the answer and ______.[ ]

I wanted to do my homework last night , but ended up ________ to the cinema.

The poor woman is very worried——_________little food for______ many children.