what are they __ at?they are __ ___the birds in the tree 他正在看什么 看书上的小鸟

What are they good at? what they are staring at? what are they __ at?they are __ ___the birds in the tree 他正在看什么 看书上的小鸟 what are __ the door?-- they are some brooms. what are they good at?怎么回答 i know there are many people __(who,what,whose,where)speak French dont like him.1.I know there are many people __(who,what,whose,where)speak French dont like him.2.They have never been __(在国外),they always stay at home.3.They are __(回)to Hong 是What on earth are they looking at?还是What on earth they are looking at? 选择:What __ at nine o'clock last Sunday morning?A was you doing B were you doing C are they doingD does we do look at the insect.what are they?改错 look at the picture and write down what they are What __ they __ they __(do) there? they __ at home yesterday What are the __(policeman) doing?They are talking to some people.为什么 What go on four legs in the morning ,on two at noon and on three in the evening ? They are __?什么去四条腿在早上,中午两次,并在三个晚上?他们是__ ? What are they _____ at the camping ___________?They are __________a___________ 怎么写? What does your cousin do?He works__ a reporter for a magazine.如下：Thank you for __ me __ my lost son.A helping :find B help:find C helping:look at D help :tolook at Who is talking __ our teacher?My mother.They are talking __ my study.A about:wit THEY ARE THE SYMBOL__ __? 用适当的介词填空：Look at these clothes.They are __ a clothes line.