【题目】_____ with so much trouble，we failed to complete the task on time．

【题目】He is ________ experienced teacher in our school.

【题目】Two explosions hit Zaventem airport at about 07:00 GMT, Mar 22nd, with 11 people _______killed.

【题目】You have ______ your family _______ a lot recently.

【题目】When you finish reading this book, you will have ____ better knowledge of ___ first aid.

【题目】Look out！Don’t get too close to the house ________ roof is under repair．

【题目】The click of a button ________ people miles apart to talk or see each other even without leaving their homes.

【题目】After watching the video, he came to ________ a different attitude to western paintings.

【题目】— How did you like Nick’s performance last night?

【题目】 opinions on the schedule, they finally reached an agreement.