YLS5 MIDTERM

He _____ swim in the sea because there are sharks.

• is able to

• isn't able to

• was able to

• wasn't able to

They _____ understand the instructions even though they were given in a foreign language.

• are able to

• aren't able to

• were able to

• weren't able to

I _____ finish my homework yet.

• haven't been able to

• have been able to

• hadn't been able to

• had been able to

He _____ attend the meeting tomorrow because he will have a prior engagement.

• isn't able to

• wouldn't be able to

• will be able to

• won't be able to

I might _____ help you later.

• able to

• not able to

• be able to

• am able to

They _____ finished the project on time because they started too late.

• couldn't have

• must have

Despite the heavy rain, we _____ reach the peak of the mountain.

• couldn't

• managed to

He _____ be at the library because he always studies there on Tuesdays.

• might not

• must

He's been coughing a lot. He _____ have a cold.

• could

• must

The famous singer will appear _____ the music festival next month.

• on

• at

• in

• to