you worked here since you graduated—No, I ________ at a factory in Beijing for six years.

1Excuse me, sir. I boughtthe shoes yesterday, but they are in different sizes. One is size 37, _____issize 38.

Can you join us in the party this evening?—Well，that depends on _____ I can have my report done before then.[ ]

She studies hard all the time; she never gives up .

I am really worried about _____ I have hurt hisfeelings, though I didn’t mean to.