Miss Smith is a friend of ______.
| A．Mary‘s mother’s | B．Mary‘s mother |
| C．Mother’s of Mary | D．Mary mother‘s |
Unfortunately, their car _____ in the mud after the heavy rain.
| A．got stuck | B．got promoted | C．got lost | D．got involved |
We can’t ____ the punctual arrival of trains in foggy weather.
| A．be sure | B．guard | C．guarantee | D．make sure |
This test ____ a number of multiple-choice questions.
| A．makes up | B．consist of | C．makes up of | D．consists of |
He soon made _____ clear why he had asked for a conference.
| A．that | B．it | C．this | D．one |
There is no doubt _____ he will finish the task in time.
| A．while | B．why | C．if | D．that |