1.A

2.A

3.B

4.C

5.A

6.C

7.A

8.B

1.is

2.who

3.will

4.would

5.where

6.when

7.at

8.see

1.do->will do

2.in->on

3.has->have

4.are->are going to

5.∅

1.i think explore the caves 

2.phuong and hoa may build sandcastles on the beach.

3.i and my family will swim in the sea 

4.they'll be at the seaside on sunday

5.i think i'll visit the muontains tomorrow

chúc bạn hok tốt cho mk ctlhn nhé mk cảm ơn

I.

1. A

2. A

3. B

4. C

5. A

6. C

7. A

8. B

II.

1. Is

2. Who 

3. Will 

4. Would 

5. Where 

6. When

7. at

8. see

IV.

1. A do - will do

2. C in - on 

3. A has - have

4. B by - going to

5. B make - go

V.

1. I think I'll explore the caves.

2. Phuong and Hoa may build sandcastles on the beach.

3. My family and I swim in the sea.

4. They'll be at the seaside on Sunday.

5. I think I'll visit mountains tomorrow.