I’m sorry I delayed_________ your letter because I have been quite busy these days.
| A．to answer | B．to have answered |
| C．answering | D．answered |
She was just about to explain ___ she hadn't passed her maths test chiefly out of carelessness ___ her uncle came.
| A．her mother … when | B．to her mother why … that |
| C．her mother that … when | D．to her mother that … when |
The newspaper's owner and editor ___ away on holiday.
| A．is | B．are | C．be | D．have been |
____ the expense, I ____ a round-the-world tour.
| A．Were it not … would take | B．If it were not… take |
| C．Weren't it for… will take | D．If it hadn't been for… would have taken |
____ you dislike ancient buildings, Warrick Castle is worth a visit.
| A．As | B．If | C．Even if | D．Now that |
It was dark and cold. They had to find a house ____ and some wood ____.
| A．to stay in…to make a fire with | B．to stay…to make a fire with |
| C．to stay in…to make a fire | D．to stay…to make a fire |