问题
选择题
--- Shall I give you a hand as your case is so heavy?
----Thank you._____.
A．Of course you can
B．It’s up to you.
C．If you can
D．It couldn’t be better.
答案
答案：A
考查交际用语;A. Of course you can当然可以，B. It’s up to you.由你决定， C. If you can如果你能的话D. It couldn’t be better.再好不过了，问句是：你的箱子很重要我帮忙吗？
A项符合句意。