问题

There was a big dog ______ in front of Mr. Hill’shouse, so David didn’t dare to go near it.

A:to sit
B:sat
C:sitting
D:sits

正确答案是：

同类题型

ok unhappy, what’s happening, my son —I’m wondering how long it’ll be________ we come toChina again.

There wecan try to turn challenges into opportunities．

I feel stressed from time to time. Could you give me some advice–___________ sharing your problems with your parents

I’m sorry, Mr. Chen, I _______ my English book at home.-That’s OK. But don’t forget ________it to school tomorrow.

________the afternoon of June 1st, many foreigners arrived ______Beijing.