________ the weather improves, we’ll have to cancel the outdoor picnic.
| A． |
Unless |
B． |
If |
C． |
Because |
D． |
When |
—Could you please tell me_________？
—Next Thursday morning.（ ）
A．when we visited the Capital Museum
B．when did we visit the Capital Museum
C．when we will visit the Capital Museum
D．when will we visit the Capital Museum
Today，many winter Olympic sports__________ even by children.（ ）
A．enjoyedB．enjoy
C．were enjoyedD．are enjoyed
Mr.Smith______ Chinese for two years.He's much better at it now.（ ）
A．learnsB．was learning
C．has learnedD．will learn
—Lily，what do you usually do after school？
—I_________exercise with my friends.（ ）
A．doB．didC．will doD．was doing
My parents and I_________ trees last Sunday.（ ）
A．plantB．will plant
C．are plantingD．planted