Someone is knocking at the door，Is it Tom？
It _____him．He has gone to Beijing．（ ）
| A． |
may not be |
B． |
can't be |
C． |
mustn't be |
Miss Li likes swimming very much and now she_______ on Saturday afternoon．（ ）
| A． |
used to swim |
| B． |
is used to swim |
| C． |
is used to swimming |
If you take a vacation this summer，so______I．（ ）
| A． |
will |
B． |
do |
C． |
am |
________have you prepared for the competition？
For two months．（ ）
| A． |
How far |
B． |
How long |
C． |
How soon |
Sally's home is far from Fun Times Park， so she ________walks there．（ ）
| A． |
seldom |
B． |
usually |
C． |
often |
His mother took him to visit the Great Wall on his _______birthday．（ ）
| A． |
nine |
B． |
nineth |
C． |
ninth |