Bob called to tell his mother that he couldn’t enter the house, for he ________ his key at school.
| A．had left | B．would leave | C．was leaving | D．has left |
It was the training _____ he had as a young man _____ made him such a good engineer.
| A．what ; that | B．that ; what | C．that ; which | D．which : that |
They are against the plan. For it ____ too much farmland.
| A．puts up | B．takes up | C．gives up | D．makes up |
---The girl looks so beautiful. Is she a model or a film star?
---________. She’s a teacher.
| A．You bet | B．Forget about it |
| C．Far from it | D．Whatever you say |
Many people would rather _____ eating out on holiday than give up their broadband, mobile phone and pay-TV services, according to a recent survey.
| A．cut off | B．cut in | C．cut back on | D．cut up |
_______ there are many different types of food, some animals spend their lives eating only one type.
| A．Since | B．Unless | C．Once | D．While |