We’re talking about the piano and the pianist （ ） were in the concert we attended last night.

Since Dick was busy, he rarely had time to go to the cinema; _____.

In the swamp the army （ ） by mosquitoes.

The defense computers calculate way to （ ） the enemy missiles.

Bob never dreams of （ ） for him to be promoted to the managing position in the company.

（） you decide to take up, you should try to make it a success.

I （ ） the instant coffee if it’s all you’ve got.

In the experiment we kept a watchful eye （ ） the developments and recorded every detail.

Three of us will go there, and the rest （ ） to stay here.

All the traveling _____ are to be paid by the company if you travel on business.

（ ） we can succeed or not depends on how well we cooperate with others．

（ ） some mammals came to live in the sea is now known.