—Where have you been recently? —I ________ in Hangzhou on business for a week last month.
Some pupils are often scared _______ some money in the corner of the streets by a few young men.
The visitors are greatly impressed by the fact that_____ people from all walks of life are working hard for _____ new Jilin.
Mother is glad that he’s already done_______ 60% of the work in such a short time.(西安市)
The little time we have together we try_______ enjoying ourselves.(西安市)
John was one of the top students in our class, but believe it or not, he_______ passed the English exam last term.(西安市)