三个英语小问题
1.Let us join the skating club,__
A.will you B.do you C.shall we D.will we
2.We are looking forware to __sightseeing during the summer vacation.
A.go B.goes C.going D.went
3.I think _important to learn a foreign language well.
A.it B.that C.this D.the、
请详述理由,