_____ I admit that the problems are difficult , I don’t agree that they cannot be solved.
| A．While | B．Suppose | C．Because | D．as though |
The room wants ___.
| A．to clean | B．cleaning | C．cleaned | D．being cleaned |
You don't need to describe her, I ___ her serveral times.
| A．had met | B．have met | C．met | D．meet |
Gou-de-le, which is one of the largest supermarket Meitans, _____ some of its stores open 24 hours on Mondays through Saturdays.
| A．keep | B．have kept | C．had kept | D．keeps |
There is an old templefrom 2000 BC on the top of the mountain.
| A．dates | B．dated | C．dating | D．be dated |
A new study found ______ a teacher has anxiety about maths, ______ feeling can influence how his or her female students feel about math．
| A．when that; which | B．that when; that |
| C．that if; which | D．if that; that |