30.—Why did you leave the lights burning? —Heavens! I guess I__________to turn them off.
I’d like to buy a house --- modern, firm, comfortable, and ________ in a quiet neighborhood.
The washing machine is of excellent quality. If there __________ be any problem within the first three years, we would fix it for free.
Lately, the media and netizens a girl named Guo Meimei for her action, which led to people losing confidence in charity.
A fantastic idea occurred to him ________ he could use a plastic bottle, ________ cut off, as a container to grow young plants in.
The bus hit against a tree in the fog and __________ to the deep valley, with then passengers killed and twenty wounded.