Vintage4

Fortunately, the hospital's new air-conditioning system ( ) the first heat wave of the summer arrived.

• had already been installed

• had already been installing

• had already installed

• already installed

It has been to concentrate on my studies lately because a road ( ) in front of my house.

• builds

• has built

• is being built

• is building

On her way home from school, the little girl was ( ) a stranger.

• spoken to by

• spoken to

• spoke

• spoken by to

"Can I help you?" "Yes. Do you know ( )?"

• when comes the train

• when does the train come

• when the train comes

• when will come the train

Let's go ahead and do it. Nothing ( ) by just waiting.

• will be gained

• will gain

• has gained

• gains

①The patient ②was ③taken good care ④at the hospital.

• ①

• ②

• ③

• ④

I really must go and see the dentist. One of my teeth ( ) for weeks.

• ached

• aches

• has been aching

• is aching