He can’t help __ housework, for he is busy __ for the examination.
| A．doing; preparing | B． to do; to prepare | C．doing; to prepare | D．to do; preparing |
In Japan when we spent the night at a small country inn, we ________ so low on the floor before.
| A．haven’t ever slept | B．wouldn’t have slept |
| C．hadn’t ever slept | D．couldn’t have slept |
He works as an engineer now, but he _______ on a farm for three years.
| A．has worked | B．worked | C．was working | D．had worked |
Joe _______ a lot of Italian by playing with the local children.
| A．kept up | B．picked up | C．drew up | D．caught up |
_______ about their table manners, the guests decided to do everything that the president did.
| A．Worried | B．Being worrying |
| C．Having worried | D．Having been worried |
—You shouldn’t have gone there alone last night.
—But I __________ , because Xiao Wang went there, too.
| A．didn’t | B．had to | C．did | D．should |