Present Simple, Present Continuous, Present Perfect, Present Perfect Continuous

 "I met our new boss this morning." - "I ... him, too. He's very nice."

The plane ........ at 4 o'clock. We must be at the airport by 2 o'clock."

"Why are you so upset?" - " I ..... my favourite ring."

"Is David at home"?" - "Yes, but he ..... a shower at the moment."

"Is Jeff still in the garden?" - "Yes. He ..... flowers all afternoon."

"Do you do any exercises at all?" - "Yes. Actually, I ..... swiming three times a week."

"Are you ready to the concert?" - "Yes, I ..... for weeks."

"That author is well-known, isn't she?" - "Yes, she ....... 20 novels so far."

Dan ... to a job interview tomorrow.

Where are the children? - They ... in the yard.

He is wet because he ... in the rain for hours.

This mountain air ... beautiful.