Verbs exercises L-10, E-B, P-2.

Nick learned from his science class that water​ (a)   at 100 degrees centigrade.

• boils
• Boiling
• Boil
• boiling
• boil
• is boiling

We will play golf on Sunday if it​ (a)  

• doesn’t rain.
• won’t rain.
• didn’t rain.
• wouldn’t rain.

We’ll begin when you​ (a)   ready.

• are
• will be
• have
• have been

Great changes​ (a)   in China since 1980.

• have taken place
• has taken place
• habe been taken place
• took place

He​ (a)   when we got there.

• had already arrived
• would have already arrived
• will already arrive
• has already arrived

You are finally back. Where​ (a)  

• have you been?
• have you gone?
• you went?
• did you went?

How many times​ (a)   you​ (b)   to Los Angeles?

• have
• been
• gone
• had

I wondered if they​ (a)   for Chicago next month

• are leaving
• will leave
• were leaving
• had left

The man I​ (a)   yesterday is my high school teacher.

• came across
• come across
• has come across
• had come across

My watch is new. It​ (a)   perfect time.

• keeps
• kept
• had kept
• will keep