Relative & Noun Clauses
Articles & Quantifiers
Verb Forms & Tenses
Grammar Structures
Mixed Challenge
100

The Amazon rainforest, ___ covers millions of acres, is shrinking every year.
A. that
B. who
C. which

C. Which

100

This is ___ important issue that affects everyone.
A. an
B. the
C. Ø

A. an

100

She ___ for two hours straight already.
A. studies
B. studied
C. has been studying

B. has been studying

100

I dislike ___ about unnecessary things.
A. him to complain
B. his complaining
C. complain

B. his complaining
100

He forgot ___ the email before leaving.
A. send
B. sending
C. to send

C. to send

200

I don’t remember exactly ___ she said during the meeting.
A. that
B. what
C. which

B. What

200

Only ___ of the students passed the exam.
A. every
B. each
C. some

c. some

200

The suspect ___ last night by the police.
A. arrested
B. was arrested
C. has arrested

B. was arrested

200

Rarely ___ such an exciting game.
A. I have seen
B. have I seen
C. I saw

 B. have I seen

200

She was late. ___, she missed the beginning of the meeting.
A. However
B. For example
C. As a result

C. as a result

300

Do you know ___ they will cancel the event?
A. if
B. who

A. if
300

She is one of ___ best writers in the class.
A. the

B. a
C. Ø

A. the

300

By this time next week, I ___ the project.
A. will finish
B. will have finished

B. will have finished

300

___ she was tired, she finished the work.

A. Despite
B. Before
C. Although

C. Although

300

Try to avoid ___ mistakes like that.
A. make
B. making

B. making

400

It’s unclear ___ the new policy will affect employees.

how; whether or not; if

400

___ information provided was not enough.

the

400

He was tired because he ___ all night.

had been working

400

___ completed the assignment early, she relaxed for the rest of the day.

Having

400

The building ___ in 1990 is still in use today.

built

500

The scientist, ___ on several important projects, will speak tonight.

working

500

Scientists continue to conduct ___ research on the topic.

Ø

500

At this time tomorrow, we ___ across the country.

will be traveling 

500

___ you finish your work can you leave.

Only when

500

Rewrite using a participle:
Because he had finished his work, he left early.

Having finished his work, he left early.

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