Complete the text with Past Perfect or Past Perfect Cont. Looking back now, he wondered if the man (5) ___________(pretend) to be an academic. If so, he had only himself to blame. Like a fool, he (7) _________ (give) the man his money and the clever 'professor’ (8) __________ (vanish). Just then, very slowly, the plants began to move and an old man with a long, white beard came out from what appeared to be solid rock ... Các bạn giúp mik với 5s + ctrlhn! (Đề bài là điền vào chỗ trống với thì quá khứ hoàn thành hoặc quá khứ hoàn thành tiếp diễn nhé)