—Shall we go for a picnic tomorrow afternoon?
—_____ It’s said that there might be a heavy rain then．
| A．Why not? | B．That’s OK． | C．Good idea． | D．It depends． |
You may keep the book for one more week_____ no one else needs it.
| A．provided that | B．so that | C．in order that | D．in case |
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 |