When I got there, they the old people clean the house.
A、helped
B、are helping
C、were helping
相关试题
Some girls won't go out without taking time to dress up.
| A．ourselves | B．yourself |
| C．herself | D．themselves |
I didn't sleep well because_ suddenly knocked on the door just now.
| A．somebody | B．nobody | C．anybody | D．everybody |
They're shoes with _ . People can use them for seeing in the dark.
| A．letters | B．lights | C．wheels | D．colors |
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