________he will come to help us is not clear.
| A．That | B．Whether | C．Either | D．What |
John received an invitation to dinner,and with his work_____ ,he gladly accepted it.
| A．finished | B．finishing |
| C．having finished | D．was finished |
—Did Peter fix the computer himself?
—He _______,because he doesn’t know much about computers.
| A．has it fixed | B．had fixed it |
| C．had it fixed | D．fixed it |
Last week,only two people came to look at the house, ______wanted to buy it.
| A．none of them | B．both of them |
| C．none of whom | D．neither of whom |
You can only be sure of_____you have at present;you cannot be sure of something_____you might get in the future.（）
| A． | that;what | B． | what;/ |
| C． | which;that | D． | /;that |
The practice of hanging clothes across the street is a common_____in many parts of the city.
| A． | look | B． | sign |
| C． | sight | D． | appearance |