Scientists have been MAKING / DOING / TAKING / LOOKING INTO. research to discover the cause of the disease.
DOING
The project is quite easy so you won't need to HAVE / SPEND / PASS / DEVOTE very much time to doing it.
DEVOTE ....TO
Igor felt very tired because he had PUT / DEVOTED / GIVEN / SPENT a lot of time and energy to the project.
SPENT (time)
My mum said she'd stop my pocket money if I was home later one more time but I don't think she'll CARRY OUT / EXECUTE / DO / MAKE her threat.
to CARRY OUT (a threat)
In the army, you have to be obedient and FOLLOW / GIVE / CARRY OUT / DO instructions immediately.
to FOLLOW orders
Remember, your behaviour will HAVE / CAUSE / MAKE / CREATE an effect on other people.
to HAVE an effect ON sb
I'm very sorry if I've GIVEN / CREATED / MADE / CAUSED you any problems.
to CAUSE problems
Yesterday, I STAYED / WAS / SPENT / PASSED 2 hours listening to the radio.
to SPEND time doing sth.
I have DEDICATED / PASSED / DEVOTED / SPENT my life studying happiness.
to SPEND one's life doing sth
I really enjoy late-night films on TV when I can REMAIN / STAY / GET / BE awake.
to STAY awake
I decided to STAY / SPEND / PASS the afternoon in the park.
to SPEND the afternoon
Colin played a game on his phone to PASS / SPEND / OCCUPY / TAKE UP time while he was waiting for the train.
to PASS (the) time
They say the wether is going to CONTINUE / STAY / FOLLOW / KEEP ON like this for the rest of the week.
to STAY like this
How did you PASS / DO / SPEND / LIKE the weekend? Did you enjoy yourself?
to SPEND the weekend
I WAS / SPENT / PASSED / STAYED 2 hours today trying to finish my homework.
to SPEND time
The bus strike has been GIVING / MAKING / CAUSING / CARRYING OUT problems for students trying to get to school.
to CAUSE problems
