﹣﹣﹣_________do your parents come to visit you in the US, Tom?
﹣﹣﹣Once a year.( )
How often
How long
How soon
How far
﹣ Did you call Michael back?
﹣I didn' t need to,_____I'll see him tomorrow.( )
unless
because
when
though
_____me an email before you come to Hohhot, and I'll meet you at the train station.( )
Send
Sending
To send
Sent
﹣ Jack, let′s have a picnic after school.
﹣Sorry. I have_____Frank to work on the biology report with him.( )
advised
expected
suggested
promised
﹣May I help you with some jeans, sir?
﹣ Yes, I′d like to try on those blue_____.( )
one
pair
two
ones
We usually go swimming in_____summer. But in____summer of 2018, we didn't.( )
/;/
a; a
/;the
a;/