It's hard to hold back the tears．This is ______thing I've ever heard．（ ）
| A． |
sad |
B． |
sadder |
| C． |
saddest |
D． |
the saddest |
﹣ Did you call Michael back？
﹣I didn' t need to，_____I'll see him tomorrow．（ ）
| A． |
unless |
B． |
because |
C． |
when |
D． |
though |
_____me an email before you come to Hohhot， and I'll meet you at the train station．（ ）
| A． |
Send |
B． |
Sending |
C． |
To send |
D． |
Sent |
﹣ Jack， let′s have a picnic after school．
﹣Sorry． I have_____Frank to work on the biology report with him．（ ）
| A． |
advised |
B． |
expected |
C． |
suggested |
D． |
promised |
﹣May I help you with some jeans， sir？
﹣ Yes， I′d like to try on those blue_____．（ ）
| A． |
one |
B． |
pair |
C． |
two |
D． |
ones |
We usually go swimming in_____summer． But in____summer of 2018， we didn't．（ ）
| A． |
/；/ |
B． |
a； a |
C． |
/；the |
D． |
a；/ |