【题目】The Belt and Road Forum, ______ about 1000 experts have attended, focuses on the goal of promoting common development and prosperity.

【题目】Believe it or not, it ________great courage to tell the truth.

【题目】______ throughout the garden are beautiful flowers of all kinds.

【题目】Don’t phone me between 5 and 6. I________dinner then.

【题目】We set off after dark ______ there three hours later.

【题目】The customer and the seller argued for quite some time before they finally agreed the price．

【题目】_______ carefully before you hand in your paper please.

【题目】I am sure that _______ you said is wrong.

【题目】I thought I was going to fail the exam, but I passed _______.

【题目】They knew nothing about the war _______ they heard from the radio.