Have they tried to send information to us?不定式 tried to 在这里做什么（例：谓语?……）Have they tried to send information to us?不定式 tried to 在这里做什么（例：谓语?……）

Have they tried to send information to us?不定式 tried to 在这里做什么（例：谓语?……）Have they tried to send information to us?不定式 tried to 在这里做什么（例：谓语?……） They tried to keep this____happening. 翻译 i have tried to make marrige vows mean what they say They have tried for ten years to capture it.(英语同义句） Have you ever ___some vegetables on your roof?It's really interesting.tried to grow/tried growing They have tried to limit such imports in order to protect their members' jobs!句中tried to是什么成份啊? they have always tried hard to.请解释一下这个句子的语法,为什么always在have的后面? the doctors have tried every---------(treat)to save the person's life They have tried ___ to persuade him to give up smoking.B,almost everything possible D,everything almost possible I have just tried to ring you... Planes have tried to catch them,but they always failed.为什么不能用fail?前后的时态怎么确定? he didn't have _______ vacations last year.Young workers usually make _______money than old ones.And they have to spend _______ time on the new workThe scientists have tried _______ times,but they still don't have any information about the UFO.If I s 改为同义句 一题 they do not seem to notice that l have tried my best.______ ______ ______ they do not notice that l have tried my best 将下列句子改为同义句1、They do not seem to notice that I have tried my best.( ) ( ) ( ) they do not notice that I have tried my best. .facebook出现Sorry, we have already tried texting multiple codes and they all seem to have failed. Please 点击此处 to get help. They have been trapped for sevevteen hours.They tried to come up hours( )问题补充中为选项A since B ago C for D since then 为什么 1.These books ___ good care of.A.must taken B.must take C.have to take D.must be taken2.He lives ____,but he doesn't feel___A.alone,alone B.lonely,lonely C.alone,lonely D.lonely,alone3.Have they tried ___information to us?A.sends B.sent C.to send D.s it's hard to say they have many things in )