It____have been Tom that parked the car here, as he is the only one with a car.[ ]

are three main classes of drugs, ________ has a different effect on the body.

How was ___ dinner at Mary’s house — Great . Her dad is ____ wonderful chef.

1I am very sad that I ______many chances in the last few years.

Taobao shop owners are busy ________ clothes for their online customers.