问题

_____ is necessary for us to finish thework in two days.
A:They
B:This
C:It
D:That
B:This
C:It
D:That
正确答案是:
同类题型
Eating too much fat can______ heart disease and cause high blood pressure.
He sent me an e-mail, _____ to get further information. [ ]
“Well done, John! Not a single mistake____ in your exam paper this time!”said the teacher[ ]
We’ve just moved into a bigger house and there’s a lot to do. Let’s it.
The tomato juice left brown ________ on the front of my jacket.