Whois（敲）atthedoor？Maybeitsthep-优题课

Who is　　（敲）at the door？

Maybe it's the postman．

科目英语题型填空题难度中等

知识点：翻译填空汉译英

The sweater is 20 dollars．（对画线部分提问）

　　is the sweater？

My father usually goes to work early　　（avoid） heavy traffic．

Please be quiet． The children　　（sleep）．

I have already asked him　　（two）but he hasn't given me any reply．

This machine can　　（translate） simple messages into 24 different languages．